A computers internal power supply fan has stopped running causing the computer to overheat. Which of the following actions should a technician take?

A.
Set up additional case fans for extra cooling of the power supply.

B.
Open the power supply and see whether the power supply fan can be replaced.

C.
Replace the power supply and discard the power supply correctly.

D.
Open the power supply and visually inspect for faulty wiring to the power supply fan.