In all green leaves and vegetables which of the following vitamin is avialable ?

Options

A. Vitamin A
B. Vitamin D
C. Vitamin K
D. Vitamin `B_(12)`

Answer

To solve the question of which vitamin is available in all green leaves and vegetables, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Vitamins**: The options given are Vitamin A, Vitamin D, Vitamin K, and Vitamin B12.

2. **Research Sources of Each Vitamin**:
- **Vitamin A**: Primarily found in carrots and some vegetables, but not universally present in all green leaves and vegetables.
- **Vitamin D**: Major sources include milk and fish, not typically found in green leaves and vegetables.
- **Vitamin K**: This vitamin is known to be present in all green leaves and vegetables, making it a common nutrient in these foods.
- **Vitamin B12**: Generally found in animal products like eggs and dairy, and only in small amounts in some green vegetables.

3. **Analyze the Options**: Based on the sources identified:
- Vitamin A is not universally available in all green leaves.
- Vitamin D is not found in green leaves or vegetables.
- Vitamin K is found in all green leaves and vegetables.
- Vitamin B12 is not predominantly found in green leaves.

4. **Conclusion**: Since Vitamin K is the only vitamin that is consistently found in all green leaves and vegetables, it is the correct answer.

### Final Answer:
The vitamin that is available in all green leaves and vegetables is **Vitamin K**.

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