Which is the first symptom of vitamin A deficiency?

Option B

Vitamin A is a fat-soluble vitamin that is important for many bodily functions, including proper vision, a strong immune system, reproduction and good skin health.
Severe vitamin A deficiency can lead to night blindness. Nyctalopia (night blindness) is one of the first signs of vitamin A deficiency. Xerophthalmia, keratomalacia, and complete blindness can also occur since vitamin A has a major role in phototransduction.