An administrator has just imported a shred Volume Group that had been created on another  system in the cluster. In order for the shred volume to be used in the cluster， what is the most important step for the administrator to take first？（）   

A.Change the quorum required to false.

B.Change the Volume Group auto vary on to yes， and then vary off the Volume Group.

C.Change the auto vary on value of the Volume Group to no， and then vary off the volume group.

D.Set the Volume Group major number to the same value that the Volume Group had on the system on which it was created.