Identify the true statements
I. Abstinence from drugs of dependence causes withdrawl symptoms but no craving.
II. Chikangunya is confirmed by Widal test.
III. Rheumatold arthritis which affects many people in our society is an auto immune disease.
IV. AIDS was first reported in 1981 and is caused by a member of a group of viruses called retroviruses.
V.Benign tumors are normally considered with metastasis.
VI. Most powerful stimulant is cocaine

Options

A. I,II,V
B. I,III,IV,VI
C. III,V,VI
D. III,IV,V

Answer

To identify the true statements from the given options, we will evaluate each statement one by one:

### Step-by-Step Solution:

1. **Statement I**: "Abstinence from drugs of dependence causes withdrawal symptoms but no craving."
- **Evaluation**: This statement is **false**. Withdrawal symptoms often include cravings for the substance as well.

2. **Statement II**: "Chikungunya is confirmed by Widal test."
- **Evaluation**: This statement is **false**. Chikungunya is diagnosed through serological tests or PCR, not the Widal test, which is used for typhoid fever.

3. **Statement III**: "Rheumatoid arthritis which affects many people in our society is an autoimmune disease."
- **Evaluation**: This statement is **true**. Rheumatoid arthritis is indeed classified as an autoimmune disease.

4. **Statement IV**: "AIDS was first reported in 1981 and is caused by a member of a group of viruses called retroviruses."
- **Evaluation**: This statement is **true**. AIDS was first recognized in 1981, and it is caused by the Human Immunodeficiency Virus (HIV), which is a retrovirus.

5. **Statement V**: "Benign tumors are normally considered with metastasis."
- **Evaluation**: This statement is **false**. Benign tumors do not metastasize; they remain localized.

6. **Statement VI**: "Most powerful stimulant is cocaine."
- **Evaluation**: This statement is **debatable**. While cocaine is a powerful stimulant, some might argue that other substances, like methamphetamine, can be considered more potent. However, cocaine is often recognized as one of the most powerful stimulants.

### Summary of True Statements:
- **True Statements**:
- Statement III: Rheumatoid arthritis is an autoimmune disease.
- Statement IV: AIDS was first reported in 1981 and is caused by retroviruses.

### Final Answer:
The true statements are **III** and **IV**.