Vitamin A affects our vision in two ways: it enables us to react to changes in brightness, and it
A) supports the development of eye functioning in fetuses.
B) enables us to see different colors.
C) supports eye functioning later in life.
D) enables us to focus on distant objects.
Question 2
Lucas has been training to compete in the Boston Marathon. In the week before the race, he has incorporated carbohydrate loading as part of his training. On the third and second days before the marathon, what should his training consist of?
A) a high-intensity run and high carbohydrate intake
B) a high-intensity run and moderate carbohydrate intake
C) a light run and high carbohydrate intake
D) rest and high carbohydrate intake
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