Answer:
A) greatly impact
Explanation:
Resting and exercising help you recharge and take your mind off the work and stress you have.
I believe teens definitely are most concerned about muscular strength. They are more worried about that because they want to protect themselves, impress others, sometimes kids just want to bulk up to not look so wimpy, etc.
I would have to say teens are less worried about flexibility because when you have mussels why worry about doing the splits or putting your leg up to your head. One thing will always distract you from the rest.
<span>Nutrition authorities agree that the staple foods of high-protein, low-carbohydrate diets clearly raise the risk for kidney disease, it's also a good way to get kidney stones.</span>
A and B are both close, but A should be the answer. If yo need to get somewhere a certain amount of time, you need to be quick so you won't be late.