Which of the following is the causative agent of syphills?

Options

A. Trypanosoma
B. Human Papilloma virus
C. Treponema
D. Haemophilus ducrei

Answer

To determine the causative agent of syphilis, we will analyze each of the given options step by step.

### Step-by-Step Solution:

1. **Identify the Options**: The options provided are:
- A) Trypanosoma
- B) Human Papilloma Virus
- C) Treponema
- D) Haemophilus ducreyi

2. **Analyze Option A: Trypanosoma**:
- Trypanosoma is a protozoan parasite.
- It is known to cause sleeping sickness, not syphilis.
- Therefore, this option is not the correct answer.

3. **Analyze Option B: Human Papilloma Virus (HPV)**:
- HPV is a virus.
- It is primarily associated with causing various types of cancers, including cervical cancer.
- It does not cause syphilis.
- Thus, this option is also not the correct answer.

4. **Analyze Option C: Treponema**:
- Treponema is a genus of bacteria.
- Specifically, Treponema pallidum is the bacterium that causes syphilis.
- This option is a strong candidate for the correct answer.

5. **Analyze Option D: Haemophilus ducreyi**:
- Haemophilus ducreyi is a bacterium that causes chancroid, which is an ulcerative sexually transmitted infection.
- It is not responsible for syphilis.
- Hence, this option is not the correct answer.

6. **Conclusion**:
- After analyzing all the options, the only correct answer is **C) Treponema** (specifically Treponema pallidum).

### Final Answer:
The causative agent of syphilis is **Treponema pallidum**.