In AIDS the drug of choice is

Options

A. acyclovir
B. Didanosine
C. zidovudine
D. tetracycline

Answer

### Step-by-Step Solution:

1. **Understanding AIDS**:
- AIDS stands for Acquired Immunodeficiency Syndrome. It is caused by the Human Immunodeficiency Virus (HIV), which is a retrovirus.

2. **Identifying the Causative Agent**:
- The causative agent of AIDS is HIV, which has two molecules of RNA as its genetic material.

3. **Recognizing the Nature of HIV**:
- HIV is classified as a retrovirus, meaning it integrates its genetic material into the host's DNA.

4. **Understanding Treatment Options**:
- The treatment for HIV/AIDS involves the use of antiretroviral drugs that help manage the infection and prolong the life of the patient.

5. **Identifying the Drug of Choice**:
- The drug of choice for treating AIDS is Zidovudine (also known as AZT). This is an antiretroviral medication that slows down the replication of the virus.

6. **Limitations of the Drug**:
- It is important to note that while Zidovudine can help manage the disease and prolong life, it does not cure AIDS. The disease remains non-curable, and patients may still succumb to opportunistic infections due to the weakened immune system.

7. **Conclusion**:
- Therefore, the correct answer to the question "In AIDS, the drug of choice is" is Zidovudine.