Question

1. which vitamin is most associated with proper vision?

a vitamin d
b vitamin e
c vitamin k
d vitamin a

Explanation:

To determine which vitamin is most associated with proper vision, we analyze each option:

• Vitamin D: Primarily associated with bone health and calcium absorption.
• Vitamin E: An antioxidant, important for cell protection, not mainly for vision.
• Vitamin K: Essential for blood clotting and bone health.
• Vitamin A: Critical for the formation of rhodopsin (a pigment in the retina) and is most associated with maintaining proper vision, including night vision.

Answer:

D. Vitamin A