After you realize that you are under stress, the next step is to identify the stressor you are facing. You can do this so you'll be able to recognize how you feel, and maybe even find the cause so you can avoid situations that make you stressed and learn to calm down.
Physical activity is essential for healthy development and adopting physical activity habits early in life will increase the likelihood of children remaining physically active as adults. Participating in family physical activities helps children gain life skills as well as health benefits.
I would say that the answer is C.