A customer reports a problem with a PC located in the same room as cement testing equipment. The room appears to have adequate cooling. The PC will boot up but locks up after 5–10 minutes of use....

A customer reports a problem with a PC located in the same room as cement testing equipment. The room appears to have adequate cooling. The PC will boot up but locks up after 5–10 minutes of use. After a lockup it will not reboot immediately. Which the following statements best describes the most likely problem?

A. The PC has a virus.

B. The PC air intakes are clogged with cement dust.

C.The CPU heat sink is underrated for the CPU.

D. The power supply is underrated for the electrical load of the PC.