Which scenario accurately describes the creation of a full synthetic backup using tape?

Which scenario accurately describes the creation of a full synthetic backup using tape?
A . a single drive can be used for both the read and write of the backup
B. a separate read drive and write drive can be used on the same Media Server
C. a read and write drive can be used on different Media Servers
D. a disk storage unit must be used prior to copying the backup to tape

Answer: B