Which of the following vitamin synthesise in animal body by bacteria `:`

Options

A. C
B. A
C. E
D. `B_(12)`

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which vitamin is synthesized in the animal body by bacteria. We need to identify the vitamins from the given options: C, A, E, and B12.

2. **Analyzing Each Option**:
- **Vitamin C**: This vitamin is not synthesized by bacteria in the animal body. It is primarily obtained from dietary sources and is important for tissue repair.
- **Vitamin A**: Similar to vitamin C, vitamin A is also not synthesized by bacteria. It is obtained from food sources and is essential for normal vision and immune function.
- **Vitamin E**: This vitamin is not synthesized by bacteria either. It is primarily acquired through diet and plays a role in preventing diseases, including coronary heart disease.
- **Vitamin B12**: This vitamin is synthesized by certain bacteria present in the colon of animals. It is crucial for the process of erythropoiesis, which is the formation of red blood cells.

3. **Identifying the Correct Answer**: Based on the analysis, the only vitamin that is synthesized in the animal body by bacteria is **Vitamin B12**.

4. **Conclusion**: Therefore, the correct answer to the question is **Vitamin B12**.

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