An IBM Tivoli Storage Manager V6.2 (TSM) administrator must check that data backed up 30 days ago still exists on the TSM server. The Backup Copy Group for this node has RETEXTRA set to 60 days and VEREXISTS set to 60. Why might the data from 30 days ago not be restorable?

A.
The RETVER is set too high.

B.
The RETEXTRA is set too high.

C.
The VEREXISTS is set too high.

D.
Clients are taking multiple backups per day.