All IBM-supplied user profiles and administrators’ profiles in a system have inadvertently been
disabled and an administrator needs to regain access into the system.
What should the administrator do?

A.
Sign on to the system console as user QSECOFR.

B.
Reinstall the system License Internal Code to reset the QSECOFR profile.

C.
Use Function 21 on the control panel 7 times to reset the QSECOFR profile.

D.
Sign on with any user that has *JOBCTL authority and CALL QIBMSECRST (‘QSECOFR’
*DEFAULT 1).