Landon Starts His Computer and Receives the Error Message, "Hard

Multiple Choice

Landon starts his computer and receives the error message, "Hard drive is not found." In a panic, he calls you because he did not back up his data and has numerous important files on his hard drive. During your investigation, Landon tells you he was watching a movie on his computer the previous night.
What might be the problem with Landon's computer?

A) CMOS RAM has lost power and reset to defaults.
B) Boot priority is set to the DVD drive.
C) POST failed.
D) Motherboard needs to be replaced.