單項(xiàng)選擇題

After you back up /export using a file system snapshot, and you have removed the snapshot, you also need to remove the backing store. If the snapshot was created with: 
  # mkdir /var/tmp/backup-snaps
 # fssnap -o 
bs=/var/tmp/backup-snaps /export 
 Which file do you need to remove? ()

A.A
B.B
C.C
D.D

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