Night blindness is caused by the deficiency of

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Night blindness is caused by the deficiency of

1. Vitamin C
2. Vitamin A
3. Vitamin K
4. Vitamin B

Answer

Vitamin A deficiency (VAD) or hypovitaminosis A is a lack of vitamin A in blood and tissues. Nyctalopia (night blindness) is one of the first signs of VAD. 

The correct option is B.