Rotavirus is responsible for :

Options

A. Measles
B. Diarrhoea
C. Japanese Encephalitis
D. Tuberculosis

Explanation

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks what disease is caused by the Rotavirus. We need to identify the correct disease from the given options: measles, diarrhea, Japanese encephalitis, and tuberculosis.

2. **Analyzing Each Option**:
- **Measles**: This is caused by the Morbilli virus, not Rotavirus. Therefore, this option is incorrect.
- **Diarrhea**: Rotavirus is known to cause viral gastroenteritis, which leads to diarrhea. This option is correct.
- **Japanese Encephalitis**: This disease is caused by a flavivirus and is transmitted by mosquitoes. Rotavirus is not responsible for this disease, making this option incorrect.
- **Tuberculosis**: This is a bacterial infection caused by Mycobacterium tuberculosis. Rotavirus does not cause tuberculosis, so this option is also incorrect.

3. **Conclusion**: After analyzing all the options, we find that Rotavirus is responsible for diarrhea.

### Final Answer:
Rotavirus is responsible for diarrhea.