An administrator needs to pause the CUPS printer Laserjet4, and wants to cancel all print jobs with a message, "hello". Which of the following commands will do this?

`cupsreject` only prevents new jobs from being accepted by a printer; it does not pause the printer or cancel existing jobs, and the `-c` option is not standard for it.

`cupsreject` only prevents new jobs; it doesn't pause or cancel existing ones, and the options `-p` and `-m` are not the correct ones for canceling jobs with `cupsreject`.

The `cupsdisable` command pauses a specified printer, preventing it from accepting new jobs and processing existing ones. The `-c` option specifically cancels all current jobs on the printer, while the `-r "message"` option provides a reason for the printer's state change and job cancellation that is displayed to users.

`cupsdisable` correctly pauses the printer, but the options `-p` and `-m` are not the standard options for canceling all jobs and providing a reason message; `-c` and `-r` are the correct options.