A patient who is 70 pounds overweight is recovering from a myocardial infarction, which occurred 6 weeks ago. The plan of care includes exercise class in conjunction with dietary program to promote weight reduction. Which exercise protocol is MOST appropriate for this patient?

A. Jogging, for 10 minutes at 4 mph

B. Walking, intensity set at 50% target heart rate

C. Walking, intensity set at 75% target heat rate

D. Swimming, intensity set at 75% age-adjusted heart reate