CompTIA A+ Core 2 Question F-76

A computer is showing the “No boot device found” message even though a technician has verified that the hard drive is set as Device 1 in the BIOS boot order. Which of the following causes is MOST likely at play?

A. A 40-pin cable was used instead of an 80-pin cable to connect the HDD.
B. The hard drive is disconnected.
C. The hard drive has corrupted sectors and needs a CHKDSK scan.
D. Both PATA devices are incorrectly set to the master jumper setting.