Explanation: The app builder should recommend building a global action to create Contacts. A global action allows users to create records quickly from any page in Salesforce on their mobile devices. The app builder can also specify predefined values for some fields in the global action, such as Account Name or Phone Number, to make data entry easier for users. Option A is incorrect because customizing the mobile menu to move Contacts to the top does not help users create new contacts quickly or follow up later. Option C is incorrect because adding a compact layout to Contacts does not help users create new contacts quickly or follow up later, but rather shows them more fields on record detail pages or list views. Option D is incorrect because using Path and setting pre-defined values does not help users create new contacts quickly or follow up later, but rather guides them through different stages of a record.

Explanation:
The issue described occurs due to the settings in the master-detail relationship. Specifically:
The Allow reparenting checkbox, Child records can be reparented to other parent records after they are created, is unchecked (B). This setting prevents changing the parent record (contact) of a child record (service plan) once it has been set. If 'Allow reparenting' is unchecked, it restricts the ability to change the associated contact, leading to the issue observed.
The other options do not directly address the inability to change the associated contact on a service plan record. The 'Read Only' and 'Read/Write' settings (A and C) pertain to access rights to the detail records based on the master record's access but do not affect the ability to reparent a record.

Explanation: The correct method to upgrade an unmanaged package that is installed in a production environment is to use the update link provided on the Installed Packages page. This process ensures that any modifications or additions in the package are properly integrated without the need to uninstall the previous version, thus preserving existing customizations and data.
A: Uninstalling removes all associated data and customizations, which is not advisable.
B: The Install Wizard is used for initial installations, not upgrades.

Explanation: The solution that an app builder should use to meet this requirement is creating a custom report type with converted leads as the primary object. A custom report type is a template that defines the objects and fields that are available for a report. The app builder can create a custom report type that has converted leads as the primary object and includes fields from related objects, such as accounts, contacts, and opportunities. This way, sales reps can create reports on converted leads and see their related information. Option A is incorrect because enabling preserve lead status in the lead conversion settings does not affect the reporting on converted leads, but rather allows users to retain the original lead status after conversion. Option B is incorrect because assigning the representative view and edit converted leads permission does not affect the reporting on converted leads, but rather allows users to view and edit converted lead records. Option C is incorrect because ensuring the representative has read access to the original lead records does not affect the reporting on converted leads, but rather allows users to view the original lead records.