What is a feature that can extend record access beyond the organization-wide defaults? Choose 2 Answers

Universal Containers require different fields to be filled out at each stage of the Opportunity sates process.
What configuration steps can an app builder use to meet this requirement?

Cloud Kicks (CK) is finding sales reps are inconsistent in data entry when deals are won. CK requires that custom shoes are shipped within two weeks after the close date. A custom field called Scheduled Ship Date on the opportunity records the ship date.
How should the app builder ensure this field is properly filled out before setting the opportunity to closed won?

Which sandbox is used for performance testing?

Universal Containers has public Read-Write as the Account Org Wide Default (OWO) setting. visit form to the Universal Containers Customer Community report they can see all of Universal Containers' account records.
How should an app builder configure Account sharing so that Community users only see their own Account.