Three DL710s are being implemented with Remote Copy:
1. Virtual tapes from DL710 A will be copied over to DL710 B
2. Virtual tapes from DL710 B will be copied over to DL710 C
3. Virtual tapes from DL710 C will be copied over to DL710 A How many licenses are needed?

A.
9

B.
3

C.
1

D.
6