A computer has been upgraded with a new hard drive and after reassembling the computer and turning the computer on， the drive LED remains lit and an error message during power-on self test （POST） states， ’No Drive Present.’ Which of the following would MOST likely be the cause？（）

A.The motherboard was damaged and needs replacing.
B.The floppy drive was not reconnected.
C.A configuration disk was left in the floppy drive.
D.The ribbon cable has been installed incorrectly.