单选题An end user reports that their computer is not performing as fast as it used to and it shuts down unexpectedly. Which of the following is the MOST likely cause?（）ANetwork data cables are damaged.BMemory has become unseated.CThe user has defragmented the hard drive.DProcessor cooling fan is not functioning.
单选题
An end user reports that their computer is not performing as fast as it used to and it shuts down unexpectedly. Which of the following is the MOST likely cause?（）
A
Network data cables are damaged.
B
Memory has become unseated.
C
The user has defragmented the hard drive.
D
Processor cooling fan is not functioning.
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