A disease caused by nematode parasite:

Options

A. Poliomyelitis
B. Leprosy
C. Filariasis
D. Amoebiasis

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a disease caused by a nematode parasite. Nematodes are a type of roundworm that can cause various diseases in humans.

2. **Analyzing the Options**:
- **Option A: Poliomyelitis**: This disease is caused by the poliovirus, which is a virus, not a nematode. Therefore, this option is incorrect.
- **Option B: Leprosy**: Leprosy is caused by the bacterium Mycobacterium leprae. Since it is caused by a bacterium, this option is also incorrect.
- **Option C: Filariasis**: Filariasis is a parasitic disease caused by nematodes, specifically by the roundworm Wuchereria bancrofti. This option is correct as it matches the requirement of being caused by a nematode parasite.
- **Option D: Amoebiasis**: This disease is caused by the protozoan Entamoeba histolytica. As it is caused by a protozoan, this option is incorrect.

3. **Conclusion**: After analyzing all the options, the disease caused by a nematode parasite is **Filariasis**.

**Final Answer**: The correct answer is Filariasis.

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