A. Distractions, because it is distracting him from running.
B. the negative peer pressure is making her do things she wouldn't usually do which is damaging not only her friendships but also her body system
Technically any of these. Are there any other details or specifics. I'd assume participating in sports because a diet only helps stress levels in the long term, watching television can relax a person but the other factors such as lack of social activity can contribute to a person's overall mental state and therefore increase stress levels, and studying can actually be relieving for some people depending on the mental state and needs of them but can obviously be a stresser. The only downfall to participating in sports is getting to excited or emotional during a game for example. But overall, C is the best choice.
Because if you feel sad then you won’t want to be able to do anything in life and get up and move around to motivate yourself if you are sad
