Certkiller .com was running NetWorker Server backups under an evaluation mode license. The live NetWorker license codes have just been entered on the NetWorker Server. Certkiller .com can no longer backup to the tape devices even though they have all the necessary license codes entered.
What is the most likely cause of the problem and how can you resolve it?

A.
Since live NetWorker licenses were entered, all tape devices need to be re-configured.

B.
The tape devices need to be cleaned.

C.
You cannot replace an evaluation mode license with live NetWorker licenses. They must de-install and re-install the NetWorker software.

D.
The tape devices became disabled when entering the live license codes and they need to re-enable the tape devices.