AIDS was first reported in

Options

A. USA
B. France
C. Russia
D. India

Answer

### Step-by-Step Solution:

1. **Understanding AIDS**: AIDS stands for Acquired Immunodeficiency Syndrome. It is a condition that results from the infection of the human immunodeficiency virus (HIV).

2. **Identifying the Cause**: HIV, which causes AIDS, was discovered by Luc Montagnier in France in 1983 and later by Robert Gallo in the United States in 1984.

3. **Understanding HIV**: HIV is classified as a retrovirus. Retroviruses are unique because they contain the enzyme reverse transcriptase, which allows them to convert their RNA into DNA.

4. **Historical Context**: AIDS was first identified as a disease in the United States. This identification marked the beginning of the recognition of AIDS as a significant global health issue.

5. **Answering the Question**: Based on the information gathered, the first report of AIDS was in the United States of America (USA).

6. **Final Answer**: Therefore, the correct answer to the question "AIDS was first reported in" is **USA**.