Most commonly used bio-weapon recording in recent times is:

Options

A. Vibrio cholera
B. Salmonella typhi
C. Bacilhus anthracis
D. Hepatits B virus

Answer

To determine the most commonly used bioweapon recorded in recent times, we can analyze the options provided and their implications as biological agents.

### Step-by-Step Solution:

1. **Understanding Bioweapons**:
- Bioweapons are biological agents that can cause harm to humans, animals, or plants. They include viruses, bacteria, fungi, and toxins.

2. **Analyzing the Options**:
- **Option A: Vibrio Cholera**: This bacterium causes cholera, a disease that can be treated with antibiotics and vaccines. It is not highly infectious in the context of bioweapons.
- **Option B: Salmonella Typhi**: This bacterium causes typhoid fever, which is also treatable. It does not have a high potential for use as a bioweapon.
- **Option C: Bacillus anthracis**: This bacterium causes anthrax, a serious infectious disease. It can infect multiple body systems (lungs, skin, intestines) and is known for its potential use as a bioweapon due to its lethality and ability to be aerosolized.
- **Option D: Hepatitis B Virus**: This virus causes hepatitis, but there is a vaccine available. It is not commonly associated with bioweapon usage.

3. **Conclusion**:
- Among the options, **Bacillus anthracis** (Option C) is the most commonly used bioweapon in recent times due to its infectious nature and the severe consequences it can cause.

### Final Answer:
The most commonly used bioweapon recorded in recent times is **Bacillus anthracis**.

---