Which of the following is the correct way to trigger BIOS Recovery?

For desktops, power on the system and keep tapping on the key F$2.$

For desktops, power on the system and keep tapping on the key F$12.$

For desktops, power on the system and hold down $$CTRL $+$ Esc$$ Key.

For desktops, power on the system and hold down $$CTRL $+$ ALT $+$ DEL$$ Key