The vitamin that is important in the formation of the retina pigment is

A.

Vitamin A

B.

Vitamin B

C.

Vitamin C

D.

Vitamin D

Correct answer is A

Vitamin A is a group of unsaturated nutritional organic compounds that includes retinol, retinal, retinoic acid, and several pro-vitamin A carotenoids (most notably beta-carotene). Vitamin A has multiple functions: it is important for growth and development, for the maintenance of the immune system and good vision.