You have configured a Replication Policy for a set of virtual tapes, replicating new data every 10 minutes. A backup started, and new data is being written to these tapes. After 30 minutes the replication process has NOT started. What is the problem?

A.
Replication Policy needs to be enabled

B.
Replication Policy license is not installed

C.
Replication only occurs when the virtual tape is unmounted

D.
Replication only occurs when the virtual tape is moved to the Virtual Vault