Hepatitis B is transmitted through

Options

A. sneezing
B. female Anopheles
C. coughing
D. blood transfusion.

Explanation

**Step-by-Step Solution:**

1. **Understanding Hepatitis B**: Hepatitis B is a serious liver infection caused by the hepatitis B virus (HBV). It primarily affects the liver and can lead to chronic liver disease and other serious health issues.

2. **Modes of Transmission**: Hepatitis B is transmitted through specific means:
- **Sexual Contact**: It is classified as a sexually transmitted disease (STD), meaning it can be spread through sexual intercourse with an infected person.
- **Blood Transfusion**: If blood from an infected person is transfused into a healthy person, the virus can be transmitted. This is a significant route of transmission.
- **Bodily Fluids**: The virus can also be present in other bodily fluids such as saliva, semen, and vaginal secretions, but the primary transmission routes are sexual contact and blood transfusion.

3. **Eliminating Incorrect Options**:
- **Sneezing**: Hepatitis B is not transmitted through sneezing. It is not an airborne virus.
- **Female Anopheles Mosquito**: This mosquito is known for transmitting malaria, not hepatitis B.
- **Coughing**: Similar to sneezing, coughing does not transmit hepatitis B. It is not spread through respiratory droplets.

4. **Conclusion**: The correct answer to the question "Hepatitis B is transmitted through" is **blood transfusion**.

**Final Answer**: Hepatitis B is transmitted through **blood transfusion**.

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