Lock jaw is a characteristic feature of which of the following disease?

Options

A. Tetanus
B. Leprosy
C. Cholera
D. Bubonic plague

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which disease is characterized by "lock jaw."

2. **Identifying the Options**: The options given are:
- A) Tetanus
- B) Leprosy
- C) Cholera
- D) Bubonic plague

3. **Analyzing Each Option**:
- **Tetanus**: This disease is known for causing muscle spasms, particularly in the jaw, which leads to the term "lock jaw." It is caused by the bacterium *Clostridium tetani*.
- **Leprosy**: This disease primarily affects the skin and peripheral nerves, not typically associated with lock jaw.
- **Cholera**: This is an intestinal infection caused by *Vibrio cholerae*, leading to severe diarrhea and dehydration, not lock jaw.
- **Bubonic plague**: This is caused by *Yersinia pestis* and is characterized by swollen lymph nodes, not lock jaw.

4. **Conclusion**: Based on the analysis, the disease characterized by "lock jaw" is **Tetanus**.

5. **Final Answer**: The correct answer is **A) Tetanus**.

---