A customer reports that when their computer is turned on. the screen is blank with some gray text
and a flashing cursor. The customer also says that there are numbers counting upward when the
computer beeps and freezes. Which of the following is the MOST likely cause of this problem?

A.
The hard drive has no MBR

B.
Computer has faulty memory

C.
The operating system is corrupted

D.
Network login account expired

Explanation: