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