As a child, Sherry was poor and did not eat very well. A certain vitamin deficiency hindered development of the light-sensitive pigments in her eyes, and now she has poor vision in low-light environments. Which of the following vitamins should she take to improve her vision? 

A. Vitamin A
B. Vitamin D
C. Vitamin K
D. Vitamin B12


Answer: A

Anatomy & Physiology

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