Menadione is

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding Menadione**: Menadione is a chemical compound that is recognized as a form of vitamin K. It is important to identify the correct vitamin associated with Menadione.

2. **Identifying Vitamin K**: Vitamin K is essential for blood clotting and is sometimes referred to as the anti-hemorrhagic factor. Menadione plays a crucial role in this process.

3. **Differentiating Other Vitamins**:
- **Vitamin C**: Known as ascorbic acid, it is a water-soluble vitamin and does not relate to Menadione.
- **Vitamin D**: Commonly referred to as calciferol, this is also a fat-soluble vitamin but is not related to Menadione.
- **Vitamin A**: Known as retinol, it is another fat-soluble vitamin but does not correspond to Menadione.

4. **Conclusion**: Based on the identification and differentiation of the vitamins, we conclude that Menadione is indeed Vitamin K.

5. **Final Answer**: The correct answer is **Vitamin K**.

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