The vitamin which is water soluble ?

Options

A. Vitamin-C
B. Vitamin-D
C. Vitamin-A
D. Vitamin-K

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the vitamin that is water-soluble among the given options: vitamin C, vitamin D, vitamin A, and vitamin K.

2. **Analyzing Vitamin C**:
- Vitamin C is also known as ascorbic acid.
- It is known to be soluble in water.
- It plays a crucial role in the human body by increasing resistance to diseases.
- Common sources include citrus fruits and sprouted pulses.

3. **Analyzing Vitamin D**:
- Vitamin D is known to be soluble in oils and fats.
- It is not soluble in water.
- It is important for controlling calcium and phosphorus metabolism.
- Sources include butter, milk, and eggs.

4. **Analyzing Vitamin A**:
- Vitamin A is also soluble in oils and fats.
- It is not soluble in water.
- It promotes growth and vision in animals and increases resistance to diseases.
- Sources include butter and milk.

5. **Analyzing Vitamin K**:
- Vitamin K is soluble in oils and fats.
- It is not soluble in water.
- It is important for blood clotting and bone health.
- Sources include leafy vegetables.

6. **Conclusion**: After analyzing all the options, it is clear that vitamin C is the only vitamin that is water-soluble. Therefore, the correct answer is **vitamin C**.