App Builder Platform-App-Builder Book

To provide a help guide to enable reps to easily get help where needed during the different sales processes, an app builder should recommend Path. Path is a component that displays the key fields and guidance for each stage of a sales process on an object’s record page. Users can see where they are in the process, update the stage and fields, and access resources such as tips and links. [Source]

Making the Opportunity type a required field on the initial Opportunity page layout and using automation to fill in the type field to a record type is a way to limit the number of fields users are required to fill out when creating a new Opportunity. This way, the app builder can assign different page layouts for different record types based on the Opportunity type. The other options are not feasible or effective

 The app builder should use Sum as the type of summary in the roll-up summary field. A Sum type of summary allows the app builder to calculate the total value of a numeric field from the child records related to a parent record by a master-detail relationship. The app builder can create a roll-up summary field on the Account object that sums the Amount field from the won Opportunities related to each Account. Count is not a valid type of summary, as it does not calculate the total value of a numeric field. A Count type of summary allows the app builder to count the number of child records related to a parent record by a master-detail relationship. Max is not a valid type of summary, as it does not calculate the total value of a numeric field. A Max type of summary allows the app builder to display the largest value of a numeric or date field from the child records related to a parent record by a master-detail relationship. Min is not a valid type of summary, as it does not calculate the total value of a numeric field. A Min type of summary allows the app builder to display the smallest value of a numeric or date field from the child records related to a parent record by a master-detail relationship.

Highlights Panel. This is correct because the highlights panel component displays key fields from a record at the top of the page, and it can be configured to show up to 10 fields.