Universal Containers has set the Org-Wide Sharing Default for Accounts to Private and has created some sharing rules to extend access based on certain data access policies. An architect has been asked to review access to a certain set of key customer accounts. How might this review be conducted?

Bob uploads a PDF to his Files Home private library.
Who can view this file?

Which two reasons should the Architect consider regarding the use of Apex Sharing Reasons?
Choose 2 answers

Universal Containers is updating its Organization-Wide Sharing Settings for the Account Object from a "Public Read/Write" model to a "Private" model, so that they can hide certain national accounts from sales reps and sales managers. These national accounts should only be accessible by sales directors and above. Universal Container's Role Hierarchy matches its organizational hierarchy. Which two options should the Architect consider when designing the solution? Choose 2 answers

Universal Containers (UC) has recently changed its internal policy to follow market regulations and create an internal team to manage the collection process. Only this team should have access to Invoke records. currently, invoke is a child in a Master-Detail relationship to Account. Although related lists have been removed from the page layouts, some profiles stills have access to the invoice object.
Which approach should an architect recommend to fix this problem?