Q. Which among the given vitamins promotes the healthy functioning of eyes in human beings?

Explanation by: Official MCQ Buddy

Vitamin A is essential for good vision, immune function, and skin health. It plays a key role in:
Maintaining the health of the retina (especially for night vision).
Preventing night blindness (nyctalopia).
Supporting the production of rhodopsin, a pigment needed for low-light vision.
Why Other Options Are Incorrect:
(A) Vitamin D → Important for bone health and calcium absorption, not vision.
(B) Vitamin C → Essential for immune function and skin health, but not directly related to vision.
(C) Vitamin B → Supports energy metabolism and nerve function, but doesn't primarily aid vision.
Thus, Vitamin A is the correct answer as it directly promotes eye health.