The health of her joints in her knee i believe
Infrastructure, because it's not a part of the environment, it's not a form of transportation, not a service either. Thus the only remaining answer is Infrastructure
The correct answer for above statement is:
Dilation in the eyes
Explanation:
Many depressants will decrease little muscle control, causing it difficult for the eye to examine, focus, and stay still. Passive pupil contraction and dilation will make differences in brightness painful and tentatively blinding.So it is very dangerous for the eyes and can even cause blindness.