Which of the following is the procedure for installing an external monitor on a laptop?

Which of the following is the procedure for installing an external monitor on a laptop?

A.
Turn on the external monitor and connect the monitor to the laptop.

B.
Turn the laptop off, connect the external monitor and reboot the laptop.

C.
Connect the external monitor and reboot the laptop until the screen displays on the monitor.

D.
Connect the external monitor and press the appropriate display keys on the laptop.