Two disk drives that have never been part of a shadow set are mounted to form a new hostbased shadow set. The command issued is:
$ MOUNT DSA100: /SHADOW=($1$DKA100:, $1$DKA200: ) SHADOWDISK
What is the result of this command?

A.
The contents of DKA200 are copied to DKA100.

B.
The contents of the two disks are merged.

C.
The contents of DKA100 are copied to DKA200.

D.
Both disks are initialized and erased.