Assertion : Extensive use of CFCs increases the chances of skin cancer.
Reason : CFCs deplete the ozone layer in stratosphere.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Explanation

To answer the question regarding the assertion and reason provided, we can break it down into a step-by-step solution:

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that the extensive use of CFCs (Chlorofluorocarbons) increases the chances of skin cancer.
- **Explanation**: CFCs are chemicals that have been widely used in refrigeration, air conditioning, and aerosol propellants. Their extensive use leads to their release into the atmosphere.

2. **Understanding the Reason**: The reason provided is that CFCs deplete the ozone layer in the stratosphere.
- **Explanation**: The ozone layer, located in the stratosphere, is crucial for protecting the Earth from harmful ultraviolet (UV) radiation emitted by the sun. CFCs contribute to the breakdown of ozone molecules, leading to a thinner ozone layer.

3. **Linking Assertion and Reason**: The depletion of the ozone layer due to CFCs allows more UV radiation to reach the Earth's surface.
- **Explanation**: Increased UV radiation exposure is linked to various health issues, including skin cancer. The assertion correctly connects the use of CFCs to the risk of skin cancer through the mechanism of ozone depletion.

4. **Conclusion**: Both the assertion and the reason are correct, and the assertion accurately explains the reason.
- **Final Statement**: Therefore, the correct answer is that both the assertion and reason are true, and the assertion correctly explains the reason.