Explanation: To ensure users have access to Query Studio for Marketing Cloud, the admin should license all appropriate users within the installed package. Query Studio is an app that allows users to write and run SQL queries on data extensions within Marketing Cloud. To use Query Studio, users need to be licensed by the admin within the installed package settings. The admin can select which users or roles can access Query Studio and assign them a license. The other options are incorrect because:

Choose Public App Integration during the installation: This option will not ensure users have access to Query Studio for Marketing Cloud, as it only affects how Query Studio connects to Marketing Cloud via API. Choosing Public App Integration means that Query Studio will use a single API user for all requests, while choosing Private App Integration means that Query Studio will use each user’s own API credentials for requests. However, this does not affect whether users can access Query Studio or not; they still need to be licensed by the admin within the installed package settings.

Install App-appropriate business units for expanded access: This option will not ensure users have access to Query Studio for Marketing Cloud, as it only affects which business units can use Query Studio. Installing App-appropriate business units means that Query Studio will be available in all business units within an account, while installing App-specific business units means that Query Studio will be available only in selected business units. However, this does not affect whether users can access Query Studio or not; they still need to be licensed by the admin within the installed package settings.

Configure the API Integration to allow all users access: This option will not ensure users have access to Query Studio for Marketing Cloud, as it only affects how Query Studio connects to Marketing Cloud via API. Configuring the API Integration means that the admin can set up the API user credentials and permissions for Query Studio. However, this does not affect whether users can access Query Studio or not; they still need to be licensed by the admin within the installed package settings.