In the case of a NetBackup appliance, which of the following is true of the storage server?

In the case of a NetBackup appliance, which of the following is true of the storage server?
A . It must be a separate NetBackup media server.
B . It is the system with the NetBackup plug-in installed.
C . It must be the NetBackup Master server.
D . It is the NetBackup appliance.

Answer: D