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The PC’s BIOS is severely out-of-date, causing PSU issues

B.
EMI

C.
Dust accumulation

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