A Windows servers backup jobs keep failing with an error message stating that the source drive is
not available. After reviewing the logs, which of the following should a technician do FIRST to
troubleshoot this issue?

A.
Verify the backup media has enough storage space for the backup job

B.
Verify the volume shadow copy service is running

C.
Close all terminal services sessions on the server

D.
Reboot the Windows server and re-run the backup job