Australia antigen is another name of antigen of

Options

A. hepatitis B virus
B. hepatitis D virus
C. hepatitis C virus
D. hepatitis E virus

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the alternative name of the "Australia antigen".

2. **Identifying the Options**: The options provided are:
- a) Hepatitis B virus
- b) Hepatitis D virus
- c) Hepatitis C virus
- d) Hepatitis E virus

3. **Researching the Australia Antigen**: The Australia antigen is specifically known as a surface antigen associated with the Hepatitis B virus. It was first discovered in the blood of Australian Aboriginals, which is why it is named the "Australia antigen".

4. **Evaluating Each Option**:
- **Hepatitis B virus**: This is the correct answer, as the Australia antigen is indeed a surface antigen of this virus.
- **Hepatitis D virus**: This virus is also known as Hepatitis Delta virus but is not referred to as the Australia antigen.
- **Hepatitis C virus**: This virus is associated with liver cancer but does not have any relation to the Australia antigen.
- **Hepatitis E virus**: This virus causes liver diseases and is spread through contaminated water, but it is not related to the Australia antigen.

5. **Conclusion**: Based on the information, the correct answer is the **Hepatitis B virus**.

### Final Answer:
The Australia antigen is another name for the antigen of **Hepatitis B virus**.

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