Which of the following actions prevents a specific user from scheduling tasks using at or batch?
A.
Add the specific user to the /etc/at.allow file.
B.
Add the specific user to the [deny] section in the /etc/atd.conf file.
C.
Add the specific user to the /etc/at.deny file.
D.
Add the specific user to the nojobs group.
E.
Run atd –deny followed by the name of the specific user.
Explanation: