CompTIA Network+ N10-006 Q409

A user reports slow performance. A technician troubleshooting the issue users a performance monitoring tool and receives the following results:
Avg. % Processor Time = 15%
Avg. Pages/Second = 5
Avg. Disk Queue Length = 1
Based on these results, which of the following is causing a bottleneck?

A. Hard drive
B. Memory
D. Processor

Correct Answer: B