After activating disk encryption on an existing BM TS7700, which action does a client need to take for the existing virtual volumes to be encrypted?

After activating disk encryption on an existing BM TS7700, which action does a client need to take for the existing virtual volumes to be encrypted?
A . The customer must assign existing virtual volumes with a new encryption policy
B . No additional customer action is required once encryption is enabled
C . Any existing volumes will have to expire and be reused before being encrypted.
D . The copy refresh command must be issued for each of the existing volumes

Answer: A