The correct answer to this question is C, FDD cable. FDD stands for floppy disk drives. When they were accessible, floppy disks were a way to store information. It was used in schools, businesses, and for personal reasons. Today, floppy disks have been replaced with smaller USB flash drives and with sharing information over the cloud.
Most no longer use floppy disks, but the connector is still available on motherboards of a computer. There are 34 pins on an FDD connector. The nails use a ribbon cable to connect to the floppy disk. The cable has two ends called FDD A and FDD B.