Click the Exhibit button.

User LUCRE reported a problem using a tape drive MKA500. She attempted to use <Ctrl>Y to
abort the task, but her process remained unresponsive and the tape drive remains inaccessible to
other users. Which action will most likely restore access to the tape?

A.
$ STOP/ID=20200145

B.
$ DEALLOCATE MKA500

C.
use AMDS to increase ASTLM

D.
reboot the system