The answer is letter C.
The
operative word for the sentence is exercise. The effect of developing good endurance
is caused by exercise. Exercises that are performed on a regular basis give
individuals many beneficial effects to health and overall development.
Individuals should at least exercise 30 minutes a day, 3-5 times a week in able
to reap the benefits that it could bring to the body internally and externally.
But before any training regimen, individuals should consult a physician to
ensure that the activities to be performed will be safe.
