You have just replaced a drive which contained unprotected BCV volumes. Several of the BCVs
had invalid tracks. What must you warn the customer about?

A.
The BCVs must be restored from their backups

B.
The next establish will be a full one and will therefore take longer

C.
They must reformat the BCVs before they can be used again

D.
No need for a warning as the data will be safe on the data drives