Which two conditions must be met to change the volume group of a tape? (Select two.)

Which two conditions must be met to change the volume group of a tape? (Select two.)
A . backup tapes must be in the same library or standalone
B . backup tapes must have barcode labels
C . backup tapes must be unassigned
D . backup tapes must be vaulted
E . backup tapes must have the same media type

Answer: A, E