Write a paragraph explaining how someone could improve their cardiovascular endurance. Include realistic goals, types of exercises, and how much aerobic activity someone should be getting.

The best exercises for improving cardiovascular endurance are activities that elevate your heart rate and keep it elevated for a sustained period of time. According to the American College of Sports Medicine, these activities include fast-paced walking, running, cycling, swimming, cross-country skiing, jumping rope and in-line skating. By elevating your heart rate with exercise, you strengthen your heart, improve blood flow, burn fat and improve your body's ability to deliver oxygen and energy to working muscles. These are the hallmarks of cardiovascular endurance.

answer; i do believe that the correct answer is (b)