Rafferty Recently Completed a Fitness Assessment with Results Poorer Than

Rafferty recently completed a fitness assessment with results poorer than he expected. His weight is significantly higher than it should be, he has several unhealthful habits, and he is unable to lift weights comparable to others his age. Rafferty's physician suggests he undertake __________ exercise, whichwill elevate his heart rate and increase his body's need for oxygen.

A) aerobic
B) anaerobic
C) cortisol
D) glycolic