Which of the Following Statements Is True Regarding Systemd Timer

Multiple Choice

Which of the following statements is true regarding systemd timer units?

A) Timer units can only be defined within a service unit's file.
B) The command executed by the timer is specified in the timer unit's [Cmd] section. The command executed by the timer is specified in the timer unit's [Cmd] section.
C) A dedicated system service, systemd-cron , handles the execution of timer units. A dedicated system service, systemd-cron , handles the execution of timer units.
D) Timer units only exist in the system scope and are not available for users.
E) Each systemd timer unit controls a specific systemd service unit.