Select a cancer-causing chemical present in tobacco:

Options

A. Nicotine
B. Vinyl chloride
C. Benzopyrene
D. Asbestos

Answer

### Step-by-Step Solution:

1. **Understanding Carcinogens**:
- Carcinogens are substances that can lead to cancer. They can be found in various forms, including chemicals, minerals, and gases.

2. **Identifying Tobacco**:
- Tobacco is a plant that is commonly used in products such as cigarettes, cigars, and chewing tobacco. It is known to contain several harmful substances.

3. **Recognizing the Options**:
- The question provides four options to choose from regarding cancer-causing chemicals present in tobacco.

4. **Evaluating the Options**:
- **Option 1: Vinyl Chloride**: This is a known carcinogen, but it is primarily a gaseous substance and not specifically a chemical found in tobacco.
- **Option 2: Benzopyrene**: This is a polycyclic aromatic hydrocarbon that is a well-known carcinogen found in tobacco smoke. It is a chemical compound that can cause mutations leading to cancer.
- **Option 3: Aspartos**: This is not a recognized carcinogen in the context of tobacco; it is more related to other contexts.
- **Option 4: Other options**: Evaluate if any other options are provided, but based on the analysis, Benzopyrene stands out.

5. **Selecting the Correct Answer**:
- Based on the evaluation, **Benzopyrene** is the cancer-causing chemical present in tobacco.

### Final Answer:
- The cancer-causing chemical present in tobacco is **Benzopyrene**.

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