You are working as a technician at Certkiller .com. You have just finished the upgrade of the
memory in a laptop. When booting up the laptop you notice that the touchpad is functioning but the
keyboard is not functioning. Which of the following is MOST likely the cause?

A.
The memory is not seated properly.

B.
The System Board needs replacing.

C.
The memory type is incorrect.

D.
The keyboard connector is not seated properly.