To verify that the keyboard is at fault when there are multiple keys on a laptop keyboard that do
not function, which of the following steps should a technician take FIRST?

A.
Replace the keyboard in the laptop.

B.
Disassemble the laptop and look for signs of damage to the keyboard.

C.
Plug in an external keyboard and test the external keyboard.

D.
Verify that the keyboard is enabled in BIOS.