Exam Certified Sharing and Visibility Designer topic 1 question 54 discussion

To store sensitive invoice data in Salesforce, the architect should consider using a master-detail relationship between accounts and invoices, and setting the organization-wide default sharing for invoices to private. This would ensure that only the owners of the invoices and their subordinates can see them, and that the invoices inherit the sharing settings of the accounts. A workflow that populates the invoice sharing object upon insert is not necessary if the master-detail relationship is used. A lookup relationship between accounts and invoices would not enforce the same level of security and visibility as a master-detail relationship. Hence correct answers are B & D.

Answer is AD