How Does the Breathing Rate of an Adult Doing Strenuous

How does the breathing rate of an adult doing strenuous activity compare to that of a world class athlete doing strenuous activity?

A) The rates are about the same because the athlete is better acclimated to strenuous activity.
B) The rate is actually higher for the adult versus the athlete because the athlete is better acclimated to strenuous activity.
C) The rate for the athlete is twice that of the normal adult.
D) The rate for the athlete is three times that of the normal adult.
E) It varies from person to person depending on the size of their lungs