In which order should an administrator install a new Symantec NetBackup 7.5 patch?

A.
Master, Media 1, Media 2, Client, OpsCenter

B.
Master, Media 1, Client, Media 2, OpsCenter

C.
OpsCenter, Master, Media 2, Media 1, Client

D.
Master, OpsCenter, Media 1, Media 2, Client