On a tape library, suddenly, there are no SCRATCH volumes available in the library. Which action will help diagnose the situation?

A.
Q LIBV libname F=D

B.
Insert new Tape volumes to the library.

C.
UPDATE DRIVE divename ONLINE=YES

D.
CHECKIN LIBV libname SEARCH=YES LABELSource=BARCODE ACCESS=SCRATCH

Explanation: