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.