Which of the following is the FIRST step he should perform?

Joe, a technician, is tasked with disassembling a laptop to replace its motherboard. Which of
the following is the FIRST step he should perform?

A.
Write down where all the screws go on paper

B.
Prepare some containers to hold the parts

C.
Remove the battery and the removable CD-ROM drive

D.
Refer to manufacturer documentation