Universal Containers uses a private sharing model on Accounts. User A and user B both own Accounts of their own and have both been sent a new account record in an email owned by user C to take a look at. User A is able to open and view the record but user B receives an insufficient privileges error. User A and user B have the same role in the role hierarchy as user.
What are the three reasons user A has access but user B is unable to access the record? Choose 3 answers

Universal Containers wants to test code against a subject of production data that is under 5 GB. They want to refresh a sandbox weekly. Which type of sandbox should be used?

Ursa Major Solar has a lookup relationship between a custom Galaxy _c object and a custom Star_c object. An app builder wants to create a roll-up summary field that counts the total number of Star_c records related to each Galaxy__c record.
How would the current configuration impact the ability to achieve the desired result?

An app builder has created a new report type but users are unable to select it from the Report Type list when making a new report for records they own.
What could be causing this issue?

Ursa Major Solar wants to see the Type field from the parent object Galaxy listed on the child record Star. The app builder is receiving an error stating "Picklist values are only supported in certain functions".
What formula should an app builder use to achieve the desired result?