What is the FortiGate unit password recovery process?

A.
Interrupt boot sequence, modify the boot registry and reboot. After changing the password, reset
the boot registry.
B.
Log in through the console port using the “maintainer” account within approximately 30 seconds of
a reboot.
C.
Hold down the CTRL + Esc (Escape) keys during reboot, then reset the admin password.
D.
The only way to regain access is to interrupt the boot sequence and restore a configuration file for
which the password has been modified.