A home computer that has been in operation for more than five years is now suffering from random shutdowns during the day. The PC is set up in an enclosed
cubby built into the home office desk. Which of the following is MOST likely plaguing the PC?

A.
The PC was switched over to 240v operation mode

B.
Dust accumulation

C.
The PC’s BIOS is severely out-of-date, causing PSU issues

D.
EMI