The deficiency of vitamin D causes :

Options

A. Rickets
B. Gout
C. Scurvey
D. Night blindness

Explanation

**Step-by-Step Solution:**

1. **Understanding Vitamin D**: Vitamin D is a fat-soluble vitamin that plays a crucial role in the body, particularly in the absorption of essential minerals like calcium and phosphorus from the diet.

2. **Role of Calcium and Phosphorus**: Calcium and phosphorus are vital for maintaining healthy bones and teeth. They contribute to bone density and strength.

3. **Consequences of Deficiency**: When there is a deficiency of Vitamin D, the body cannot absorb sufficient calcium and phosphorus. This leads to a decrease in the availability of these minerals for bone formation and maintenance.

4. **Condition Caused by Deficiency**: The primary condition associated with Vitamin D deficiency is rickets. Rickets is characterized by the softening and weakening of bones, particularly in children, which can lead to deformities and pain in the joints.

5. **Conclusion**: Therefore, the deficiency of Vitamin D causes rickets due to impaired absorption of calcium and phosphorus, leading to weakened bones.

**Final Answer**: The deficiency of vitamin D causes rickets.

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