Having weak eye sight is not a lifestyle factor. Your life style is your choice. You choose to smoke, you choose to have friends, and you choose to walk to school. Having weak eye sight is involuntary.
Amino acids and fats. Sugars/carbs are used as an energy source, while fats and proteins are used as building blocks during growth.
ANSWER:
the answer is A
~BATMANS WIFE DUN DUN DUN...AKA ~SERENITYBELLA