Among the following vitamins the one whose deficiency causes rickets (bone deficiency) is

Options

A. Vitamin A
B. Vitamin B
C. Vitamin D
D. Vitamin C

Explanation

To determine which vitamin deficiency causes rickets, we can analyze the functions and deficiencies of the vitamins listed in the question.

### Step-by-Step Solution:

1. **Identify the Vitamins**: The question asks about the vitamins that could cause rickets. The options provided are Vitamin A, Vitamin B, Vitamin C, and Vitamin D.

2. **Understand the Role of Each Vitamin**:
- **Vitamin A**: Known as retinol, it is primarily responsible for vision, especially in low light conditions. Its deficiency leads to night blindness but does not cause rickets.
- **Vitamin B**: This group includes several vitamins (B1, B2, B3, B6, B9, etc.). Deficiencies in these vitamins can lead to various health issues, but none are directly linked to rickets.
- **Vitamin C**: This vitamin is important for the health of skin, blood vessels, and bones. Its deficiency leads to scurvy, which affects gum health, but it does not cause rickets.
- **Vitamin D**: This vitamin is crucial for calcium absorption and bone health. A deficiency in Vitamin D leads to weak and soft bones, resulting in rickets.

3. **Conclusion**: Based on the functions of these vitamins, the deficiency that causes rickets is due to a lack of Vitamin D.

### Final Answer:
The vitamin whose deficiency causes rickets is **Vitamin D**.

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