To add components to the utility bar of an existing app:
* C. App Manager. This is where Salesforce apps are configured, including the utility bar which can house components like a chat tool, recent items list, or custom Lightning components.
Steps to edit an app's utility bar:
* Navigate to Setup # App Manager.
* Locate the desired app and click on the dropdown next to it # select Edit.
* In the App Builder, navigate to the Utility Items tab.
* Click 'Add' to include new components to the utility bar.
* Configure the properties of the utility item as needed.
* Save the app configuration.
For step-by-step instructions on modifying apps, see Salesforce's guide on Managing Apps in Lightning Experience.

An indirect lookup relationship is a custom relationship between two objects that are linked by an external ID field. The external ID field must be a custom field on the parent object that has the "External ID" attribute enabled. The child object must be a standard or custom object that is on the detail side of a master-detail or lookup relationship.

Explanation
The two considerations that should be made are: The Star records are all required to have an existing value in their Galaxy field. This is a prerequisite for converting a lookup relationship to a master-detail relationship. A lookup relationship is an optional relationship that links two objects together, but does not enforce referential integrity or cascade delete. A master-detail relationship is a required relationship that links two objects together and enforces referential integrity and cascade delete. To convert a lookup relationship to a master-detail relationship, all child records must have a value in their lookup field that references an existing parent record. The Galaxy object has fewer than two existing master-detail relationships. This is another prerequisite for converting a lookup relationship to a master-detail relationship. An object can have up to two master-detail relationships with other objects and can act as both the parent and child in different relationships.
To convert a lookup relationship to a master-detail relationship, the parent object must have fewer than two existing master-detail relationships with other objects. The Galaxy object is required to contain existing roll-up summary fields is not a valid consideration, as it is not related to converting a lookup relationship to a master-detail relationship.