A User Says That After Running for a Minute or Two,a

Multiple Choice

A user says that after running for a minute or two,a computer randomly turns off and then won't turn back on.After sitting for a few minutes,it turns back on only to shut off again after another minute or two.Which of the following is most likely the cause?

A) RAM is not seated properly
B) CPU is suffering from thermal failure
C) Hard disk drive is failing
D) Graphics settings are too high for the video card