Step 1: Understanding Night Blindness.
Night blindness is a condition in which an individual has difficulty seeing in low light or darkness.
Step 2: Vitamin A and Night Blindness.
Vitamin A plays a crucial role in the functioning of the retina in the eye. A deficiency in this vitamin impairs the ability to produce rhodopsin, a pigment essential for night vision.
Step 3: Verifying the Options.
Option (1): Vitamin B is not linked to night blindness.
Option (2): Vitamin A is correct, as it is responsible for vision health and the prevention of night blindness.
Option (3): Vitamin C is important for overall health but not directly linked to night blindness.
Option (4): Vitamin D is important for bone health, but not for night vision.