What are drugs?

Options

A. Illegal harmful chemicals
B. Natural hormones
C. Natural vitamins
D. Beneficial organic substances

Answer

### Step-by-Step Solution:

1. **Definition of Drugs**: Drugs are defined as chemical substances that cause changes in human physiology and psychology when consumed. They can alter mood, perception, and behavior.

2. **Characteristics of Drugs**:
- Drugs can lead to temporary feelings of happiness or euphoria.
- They may cause hallucinations or other alterations in perception.

3. **Evaluation of Options**:
- **Option 1**: "Illegal harmful chemicals" - This option is correct as it aligns with the definition of drugs, which can include illegal substances that are harmful.
- **Option 2**: "Natural hormones" - This option is incorrect. Natural hormones are produced by the endocrine glands and are not classified as drugs.
- **Option 3**: "Natural vitamins" - This option is also incorrect. Vitamins are essential nutrients that support various bodily functions but are not classified as drugs.
- **Option 4**: "Beneficial Organic Substances" - This option is incorrect. While beneficial organic substances include healthy foods, they do not fit the definition of drugs.

4. **Conclusion**: Based on the evaluation of the options, the correct answer is that drugs are illegal harmful chemicals.