After displaying the directory of a floppy disk, a different floppy is inserted into the drive. The contents of the original floppy continue to display regardless of the director requests on the other floppies placed in the drive. You remove the drive in question and install it into your test system, and it does not exhibit the problem. You should next replace the: A. System’s floppy drive device driver B. Original IDE controller C. Floppy drive ribbon cable D. System’s power supply E. None of the above

The correct answer is: A. System’s floppy drive device driver

The system’s floppy drive device driver is responsible for communicating with the floppy drive. If the driver is not working properly, it can cause the problem you are describing. When you remove the drive in question and install it into your test system, and it does not exhibit the problem, this further confirms that the problem is with the driver.

The other options are not likely to be the cause of the problem. The original IDE controller is responsible for communicating with the hard drive, not the floppy drive. The floppy drive ribbon cable is responsible for connecting the floppy drive to the motherboard. The system’s power supply is responsible for providing power to the system, including the floppy drive.

Therefore, the most likely cause of the problem is the system’s floppy drive device driver.