Correct Answer:
C. SSD
Correct answer: SSD. An SSD keeps its data even when the power is off, so it is non-volatile.
Background: Volatile memory needs power to keep its data.
- RAM: RAM loses its data when the power is off.
- Cache: Cache memory is volatile.
- Registers: CPU registers are volatile.
Did you know? ROM, flash memory, and hard disks are also non-volatile.
Memory trick: Non-volatile = keeps data without power.