Which States a Difference Between Read-Only Memory (ROM)and Random Access

Multiple Choice

Which states a difference between read-only memory (ROM) and random access memory (RAM) ?

A) ROM is volatile memory, whereas RAM is nonvolatile memory.
B) ROM is secondary memory, whereas RAM is main memory.
C) ROM is nonvolatile memory, whereas RAM is volatile memory.
D) ROM is main memory, whereas RAM is secondary memory.