The lens helps the eye to focus on images.
"The Lens. The lens is composed of transparent, flexible tissue and is located directly behind the iris and the pupil. It is the second part of your eye, after the cornea, that helps to focus light and images on your retina."
Answer:
C
Explanation:
It's an exersize done without oxygen :)
Gravity
Hope this helps xox :)
I believe the answer is promoting supplements, D.
