Records must resist deletion or modification for a regulatory retention period. The team will test write behavior before locking. Which control directly fits?

Choose the single best answer.

A.Blob versioning alone without a locked retention or legal-hold policy
B.Immutable Blob storage with a supported time-based retention policy or legal hold
C.Blob soft delete alone as an immutable prohibition on all writes and deletes
D.Archive access tier alone as WORM enforcement

Show the answer and explanation

✓ Correct answer

Immutable Blob storage with a supported time-based retention policy or legal hold

Immutability enforces eligible WORM retention. Soft delete offers an undo window rather than prohibiting every modification. Archive is an access tier, while versioning retains supported previous versions without itself creating the requested immutable retention boundary. Source guide: PDF page 29-30.

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