A user reports that the system is running slowly but that the hard drive seems to be running constantly. After viewing TASK MANAGER, a technician observes that the system idle time is using the majority of processor time. Which of the following is MOST likely the cause?

A.
There is a virus or spyware on the computer.

B.
The hard drive is fragmented.

C.
The hard drive is failing.

D.
There are too many programs running.