Solution
Correct Answer: Option C
✔A CD ROM is a prepressed optical compact disc that contains data. Computers can read but not write or erase CD ROM, it is a type of read-only memory.
✔Capacity: 194 MB (8 cm), 650–900 MB (12 cm)
✔Standard: ISO/IEC 10149
✔Read mechanism: 600-780nm laser diode, 150 KB/s (1×; 150 × 210), 10,800 KB/s (72×)