A user wants to run a batch job repetitively, but requires that each invocation starts five hours after
the previous run finishes. What strategy will accomplish this?

A.
Create a wrapper script that launches the job in the background and then sleeps for the
designated period before launching it again.

B.
Submit the job with ‘at’, using the average run time of the job plus five hours as the interval.

C.
Add an entry to the crontab to submit the job every five hours.

D.
Create a file containing the job commands, using the ‘at’ command as the final line of the file.

Explanation: