A user does not want Bluetooth to start up every time the system starts. Which of the following commands should the user execute to accomplish this task?

'disabled' is not a valid systemctl subcommand; the correct subcommand is 'disable' without a trailing 'd', so this command would fail with an unknown operation error.

systemctl disable bluetooth.service removes the systemd symlinks in the enabled target directories that cause the service to start at boot, preventing Bluetooth from launching on subsequent system starts. The syntax requires the exact subcommand 'disable', the 'systemctl' base command, and the full unit name with the .service suffix.

'system stop' uses the wrong base command 'system' instead of 'systemctl', and 'stop' only halts the currently running service instance without removing its boot-time startup configuration.

'system stopped' uses the wrong base command 'system' and 'stopped' is not a recognized systemctl operation, making this command entirely invalid.