In MDC3, which statement best describes data retention policies?

• A. They define how long data is kept and when it is archived, but not how it is deleted.
• B. They define how long data is kept, when it's deleted, and how it's archived; they guide MDC3 compliance and storage costs.
• C. They determine which datasets are used for testing.
• D. They are unrelated to MDC3.

Answer: (B)

Data retention policies in MDC3 govern the data lifecycle by specifying how long to keep data, when to delete it, and how to archive it. This combination matters because it ensures you meet regulatory and organizational requirements while also controlling storage costs. Keeping data only as long as needed, archiving items appropriately, and deleting what’s no longer required creates a clear, compliant, and cost-conscious approach to data management. That’s why a policy that covers retention duration, deletion timing, and archiving—and ties these to compliance and storage costs—is the best description.

The other options don’t fit because one only mentions retention and archiving without deletion, which leaves out a key part of the life cycle; another focuses on selecting datasets for testing rather than data lifecycle management; and the last states it’s unrelated, which isn’t true in MDC3.