Why would node replication be implemented rather than a tape copy storage pool?

Why would node replication be implemented rather than a tape copy storage pool?
A . Tape storagesubsystems are less reliable than node replication systems.
B . Node replication is responsible for self-service file-level restore capability.
C . Client data is available for restoration after successful node replication.
D . Tape storage is antiquated anddoes not make sense any longer.

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Answer: B