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

[answerhappygod]

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

A. All tape volumes in a volume group must be in the same library or standalone.
B. All tape volumes must have barcode labels.
C. No backup images can be written to the tape volume.
D. All tape volumes must be vaulted before the volume group can be changed. E. All tape volumes in the same volume group must have the same media type.