Deficiency of which of the following vitamins causes Night Blindness?

Vitamin A

The correct answer is Option (4) - Vitamin A

Deficiency of the following vitamin causes Night Blindness: Vitamin A

Explanation: Night blindness, also known as nyctalopia, is a condition characterized by difficulty seeing in low light or at night. It is often associated with a deficiency of vitamin A, which is essential for the proper functioning of the retina, the light-sensitive tissue at the back of the eye.

Vitamin A plays a crucial role in the synthesis of rhodopsin, a pigment found in the retina that is responsible for the perception of light. In the absence of sufficient vitamin A, the production of rhodopsin is impaired, leading to reduced sensitivity to dim light and difficulty seeing in low-light conditions, such as at dusk or during nighttime.

Therefore, a deficiency of vitamin A can result in night blindness and other vision problems. Consuming foods rich in vitamin A, such as carrots, sweet potatoes, spinach, and liver, can help prevent or alleviate night blindness associated with vitamin A deficiency.