Explanation:

The scenario describes a master-detail relationship between the custom Service Plan object (the detail or child) and the standard Contact object (the master or parent). The reason a master-detail relationship is likely in use is the requirement that a Service Plan be "associated to one and only one contact," which is a defining characteristic of this type of relationship.
By default, the Allow reparenting option is disabled when a master-detail relationship is created. This means that once a child record (the Service Plan) is created and assigned to a parent record (the Contact), the relationship field becomes read-only and cannot be changed. To allow the parent record to be changed, an App Builder must explicitly enable the Allow reparenting setting by editing the master-detail relationship field definition.

Why other options are incorrect
A. The Read Only radio button, Allows users with at least Read access to the Master record to create, edit, or delete related Detail records, is selected: This option describes a setting for defining access for the child record, not the ability to change the parent record itself. It determines what users with read access to the master can do with the child, not whether the master can be reparented.
C. The Read/Write radio button, Allows users with at least Read/Write access to the Master record to create, edit, or delete related Detail records, is selected: Similar to option A, this setting concerns the access rights on the child record based on the master record's security, and does not directly control the reparenting functionality.
D. The Allow reparenting checkbox...is checked: This is the opposite of the correct answer. If the Allow reparenting checkbox were checked, the reps would be able to change the associated contact.

Explanation:

The issue is that a user cannot use inline editing on a list view despite having appropriate permissions. Inline editing in Salesforce list views allows users to edit fields directly in the list, but certain conditions can disable this functionality. Let’s analyze the options:
Option A: If the list view restricts sharing for the user
Incorrect. Sharing settings determine whether a user can view or edit records, but they do not directly affect inline editing functionality in list views. If the user has edit permissions (as verified), sharing restrictions would prevent access to the records entirely, not just inline editing.
Option B: If the list view selected is the recently viewed list view
Correct. The Recently Viewed list view in Salesforce does not support inline editing. This list view is dynamically generated based on recently accessed records and does not allow modifications via inline editing, even if the user has appropriate permissions.
Option C: If the list view contains a chart created by the user
Incorrect. A chart associated with a list view (e.g., for analytics) does not impact inline editing functionality. Charts are visual representations of data and do not affect the ability to edit fields directly in the list view table.
Option D: If the list view contains more than one record type
Correct. Inline editing in list views is disabled if the list view includes records of multiple record types. Salesforce restricts inline editing in this case because fields available for editing may vary by record type, leading to inconsistent behavior.

Additional Notes:
Other conditions that could disable inline editing (not listed in options) include:
The list view filter includes a locked field (e.g., a formula field or read-only field).
The object’s page layout or field-level security prevents editing specific fields.
Inline editing is disabled for the object in the org’s settings (rare, but possible).
To resolve, ensure the user selects a list view other than “Recently Viewed” and filters the list view to a single record type.

References:
Salesforce Documentation: Inline Editing in List Views
Notes that inline editing is not supported for the Recently Viewed list view and lists with multiple record types.

Explanation:

To solve this problem, you need to address two distinct requirements: automatically notifying managers and tracking the changes.

Automatic Notifications
To automatically notify Sales Managers about a change to an Opportunity Close Date, you need a process automation tool. Process Builder (or its more modern equivalent, Flow Builder) is the ideal declarative tool for this. You can create a process that is triggered when an Opportunity record is changed. The criteria for this process would be Opportunity.CloseDate IsChanged Equals True. The immediate action for this process would be a "Post to Chatter" action that notifies the Sales Managers or a Chatter group they are part of.

Tracking Changes
To "track these changes on the Opportunity" and have a clear, visible log of the change, you would use Feed Tracking. When you enable Feed Tracking on the Opportunity object and select the Close Date field, any change made to that field will automatically create a new post in the record's Chatter feed. This provides a timestamped, user-stamped history of every change to the close date directly on the record itself, which is what the managers want.

Why Other Options Are Incorrect
A. Create an Opportunity outbound message: Outbound messages are used to send data from Salesforce to an external system. They are not used for internal notifications within Salesforce like Chatter posts.
C. Activate Historical Trending for Opportunities: Historical Trending is a reporting feature that allows you to analyze changes to data over time. While it does "track" changes, it is for reporting purposes and does not provide real-time, in-record notifications. It's a tool for analysis, not for immediate alerts.

Explanation:

The utility bar is a part of the Lightning App Builder interface. To make a custom Lightning web component or Aura component available for placement on the utility bar, it must be explicitly configured to be compatible with the Lightning App Builder. This is done by including the tag in the component's XML metadata file and specifying the Lightning__AppPage target.
Why this is correct: Tagging a component "For use in Lightning App Builder" (Lightning__AppPage) is the prerequisite that makes it available for drag-and-drop into any region of an app page built with the tool, which includes the utility bar, the header, the main body, and the footer. The utility bar is not a separate tag but a specific location within the App Builder's purview.

Why the other options are incorrect:
A. For use on record pages: This is a more specific target (Lightning__RecordPage). While a component tagged for record pages is also available in the Lightning App Builder (because Lightning__RecordPage inherits from Lightning__AppPage), it is not the most direct or fundamental answer. The question is about general availability in the App Builder tool itself.
C. For use on the utility bar: There is no specific, standalone metadata tag for "utility bar." The utility bar is a location within an app built in the Lightning App Builder. Availability is controlled by the broader Lightning__AppPage target.
D. For use in App Manager: The App Manager is an administrative setup screen used to create and manage apps. Custom components are not added to the App Manager interface itself. This is not a valid target for a component.

Reference:
This falls under the User Interface section. It tests the understanding of how to configure custom components for deployment in different parts of the Lightning Experience, specifically the metadata targets required for the Lightning App Builder.

Key Takeaway:
To make a component available in the Lightning App Builder (and consequently its utility bar), its .js-meta.xml file must include the target Lightning__AppPage.

Explanation:

Why:
Create an Update a Record quick action on the Account object (include the Account fields the user should edit). Then add a Related Record component to the Opportunity Lightning record page, point it at the AccountId lookup, and select that update action. This lets users edit the parent Account directly from the Opportunity page.

Why not the others:
B. Details component only edits the current record (Opportunity), not the related Account.
C. Formula fields are read-only—no editing.
D. Process/flow updates are automation, not a UI for the user to directly edit the Account.