Cholera is an infectious digestive disorder in which patients have loose motions and vomiting. It is caused by:

Options

A. Virus
B. Fungi
C. Bacteria
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding Cholera**: Cholera is identified as an infectious digestive disorder characterized by symptoms such as loose motions (diarrhea) and vomiting.

2. **Identifying the Causative Agent**: The question asks for the causative agent of cholera. We need to determine whether it is caused by a virus, fungi, bacteria, or none of these.

3. **Analyzing the Options**:
- **Virus**: While some diseases are caused by viruses, cholera is not one of them.
- **Fungi**: Fungi can cause various infections, but they are not responsible for cholera.
- **Bacteria**: Cholera is known to be caused by a specific type of bacteria.
- **None of these**: This option can be ruled out since we know cholera has a specific causative agent.

4. **Identifying the Specific Bacteria**: The bacteria responsible for cholera is called *Vibrio cholerae*. This bacterium infects the intestines and leads to the symptoms associated with cholera.

5. **Transmission of the Bacteria**: *Vibrio cholerae* typically enters the body through the consumption of contaminated food and water. This highlights the importance of hygiene and sanitation in preventing cholera outbreaks.

6. **Conclusion**: Based on the analysis, the correct answer is that cholera is caused by bacteria, specifically *Vibrio cholerae*.

**Final Answer**: Cholera is caused by bacteria (specifically *Vibrio cholerae*).

---