A. Data stored in cache
B. Network connections
C. Flash memory in a desk drawer
D. An internal hard drive
The correct answer is C.
Domain: 2.3. The least volatile form of data is that which is not in use. All data is volatile. Stating something is least (or less) volatile does not imply that it is non-volatile. In this list of options, only flash memory in a desk drawer is not in active use.