This graph depicts the torque output of a hypothetical gasoline engine as a function of rotation frequency. The engine is incapable of running outside of the graphed range.
Engine Revolutions per Minute
At what engine RPM (revolutions per minute) does the engine produce maximum power?
Answer Choices
A. I
B. At some point between I and II
C. II
D. At some point between II and III
E. III
