In an EMC NetWorker backup environment, what happens when you try to clone a volume to which backups are currently being written?

In an EMC NetWorker backup environment, what happens when you try to clone a volume to which backups are currently being written?
A . Clone operation waits for the source volume to finish writing.
B . Clone operation exits with the following error: source volume in use.
C . Backup is suspended to the source volume for the duration of cloning.
D . NetWorker skips the clone operation for save sets on the volume in use and continues to clone other save sets.

Answer: A