[PLEASE HELP ASAP] (1) Running, jogging, walking—great exercises all, but they can be killers on your feet. (2) In recent years, more and more Americans are having foot injuries like plantar fasciitis, a painful inflammation of the bottom of the foot that can last for months. (3) If you do get plantar fasciitis, here's an exercise that often helps it go away. (4) First, stand about arms' length from a counter that is a little more than waist high. (5) Be sure your feet are about a shoulder length apart. (6) Next, pivot your toes so that you are pigeon-toed. (7) Then, bend your legs toward each other so that you are knock-kneed. (8) Finally, bring your hips and upper body forward toward the counter, resting your forearms on the countertop to take some of the weight off. (9) Make sure to keep your heels on the floor as you hold the position for 30 to 60 seconds. (10) Do this exercise twice a day.
What is the central idea of this passage?

A. how to run, walk, or jog correctly
B. how to prevent someone from getting plantar fasciitis
C. how to counteract the effects of plantar fasciitis
D. how to prevent several kinds of foot injury