Explanation:

A standard **Compact Disk** (specifically a CD-ROM, or Compact Disc Read-Only Memory) is designed to be read-only. Once data is written to it during manufacturing, it cannot be erased or modified by the user. This is its primary limitation as a storage medium in this context. * **Option A (Tape drive):** Tape drives use magnetic tape, which is typically rewritable and erasable. * **Option B (Hard drive):** Hard drives are magnetic storage devices that are fully rewritable and erasable. * **Option C (Compact disk):** This is the correct answer, referring to the read-only nature of a standard compact disk (CD-ROM). * **Option D (Floppy disk):** Floppy disks are magnetic storage media that are rewritable and erasable.