Answer: A.
Explanation:
Im pretty sure its A. Balance. All of them are important but balance is the main thing you'd need to know.
It is A, i just took the test!
Hope this helps!
Okay so I have wrote down the answer for u and please don't mind my handwriting , I was just in a hurry
Stretch the muscles before working out so it will be more easier to sprint while running to bring out the legs more
I think the answer is proactive