Answer:
The best answer to this question, given the answer choices found on the same question, on another source, would be: Walking to school.
Step-by-step explanation:
The reason is that the simple act of walking, every day, increases the cardiovascular system´s activity, and that of the muscular system as well. Without much effort, the need for extensive planning, or sacrificing much, a person can greatly increase his/her activity levels by simply dedicating some time to walking to different places, instead of driving, or having someone drive them. In fact, most healthcare professionals, and research, council patients whose lifestyles are sedentary to include a 20 to 30 minute walk, instead of driving, as a form to increase physical activity.