Deficiency of Vitamin A causes

Correct option is A

The correct answer is (A) Night blindness

Explanation:
• Vitamin A (Retinol) is essential for maintaining healthy vision, especially in low-light conditions.
• It is a precursor to rhodopsin, the photopigment found in the rods of the retina that helps us see at night.
• A deficiency of Vitamin A leads to Nyctalopia (Night Blindness), where the individual has difficulty seeing in the dark. If left untreated, it can progress to Xerophthalmia (drying of the cornea) and eventual permanent blindness.
• Sources of Vitamin A include carrots, spinach, sweet potatoes, and fish liver oils.

Information Booster:
• Vitamin A is a fat-soluble vitamin (along with D, E, and K).
• Golden Rice is a genetically modified crop engineered to produce beta-carotene (a precursor of Vitamin A) to combat deficiency in developing nations.
• Vitamin A also plays a crucial role in immune function and skin health.

Additional Knowledge:
• Scurvy (Option B): Caused by a deficiency of Vitamin C; results in bleeding gums and poor wound healing.
• Anaemia (Option C): Most commonly caused by a deficiency of Iron (leading to low hemoglobin) or Vitamin B12/Folic acid.
• Beri-Beri (Option D): Caused by a deficiency of Vitamin B1 (Thiamine); common in populations consuming mainly polished rice.