Your customer has an existing integrated Celerra NAS. The customer would like to add a second integrated Celerra at a remote site and replicate data to the remote site using its existing IP infrastructure. A customer requirement is that data can be recovered from a point-in-time one hour prior to a network failure. Which Celerra feature would satisfy this customer requirement?

A.
CDMS

B.
Celerra FileMover

C.
Celerra Replicator

D.
SRDF/A