Mumphs disease is caused by

Options

A. Protozoan
B. Virus
C. Bacterium
D. Fungus

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks about the causative agent of mumps disease.

2. **Consider the Options**: The options provided are:
- A. Protozoa
- B. Virus
- C. Bacterium
- D. Fungus

3. **Recall Information About Mumps**: Mumps is a viral infection that primarily affects children. It is characterized by swelling of the salivary glands, fever, and other symptoms.

4. **Determine the Causative Agent**: The mumps disease is specifically caused by the mumps virus, which belongs to the family of paramyxoviruses.

5. **Confirm the Correct Answer**: Based on the information, the correct answer to the question is option B, which is "Virus".

6. **Conclusion**: Therefore, mumps disease is caused by a virus.

**Final Answer**: Mumps disease is caused by B. Virus.

---