What should you do before handling the processor of an HP Z840 workstation?

A.
Wash hands, and wear hypoallergenic protective gloves.

B.
Check for specific POST error codes to ensure that the processor is functioning property.

C.
Take note of the orientation of the gold triangle and notches on the processor.

D.
Run the Built in Self Test (BIST) to ensure that no faults are present.