A Symantec NetBackup administrator has three media servers (named prod-media, dev-media, and testmedia) that are available for client backups. The administrator would like the jobs to run to the prod-media
server first, unless it is down only. How should the administrator configure the storage?

A.
configure three storage units and then select any available in the policy

B.
configure a storage unit group and set the storage unit selection to prioritized

C.
configure a storage lifecycle policy and set the selection to first available

D.
configure the storage unit group and set the storage unit selection to failover