The elphantiasis is caused due to infection of

Options

A. Entamoeba histolica
B. Ascaris
C. Wuchereria bancrofti
D. Retro virus

Answer

**Step-by-Step Solution:**

1. **Understanding Elephantiasis**:
- Elephantiasis is a disease characterized by the extreme swelling of body parts, often the legs and genitals, due to the obstruction of lymphatic vessels.

2. **Identifying the Cause**:
- The primary cause of elephantiasis is the infection of the lymphatic system.

3. **Pathogen Responsible**:
- The specific pathogens that cause elephantiasis are parasitic worms, particularly filarial worms.

4. **Filarial Worms**:
- The most common filarial worm responsible for elephantiasis is *Wuchereria bancrofti*. This parasite is transmitted to humans through the bites of infected mosquitoes.

5. **Transmission**:
- When an infected mosquito bites a person, it injects the larvae of the filarial worms into the bloodstream, which then migrate to the lymphatic system and cause inflammation and blockage.

6. **Symptoms**:
- The blockage of lymphatic vessels leads to severe swelling, thickening of the skin, and other complications.

7. **Conclusion**:
- Therefore, elephantiasis is caused by the infection of the lymphatic system due to filarial worms, primarily *Wuchereria bancrofti*.