Concept:Storage devices are hardware components used to record, save, and retrieve digital data.
Explanation:The hard disc drive (HDD) and the floppy disk drive (FDD) are both physical hardware units installed in a computer system.
They are used to read data from and write data to storage media such as magnetic disks or floppy disks.
This makes them examples of *storage devices*, not input devices or output devices.
Input devices only send data into the computer, and output devices only display or produce results.
The disks themselves (e.g., a floppy disk or hard disk platter) are called storage media, but the drives are the devices that access those media.
Thus, the given drives belong to the category of storage devices.
Answer:B. storage device.