Assertion: The maximum number of threatened species belong to amphibia.
Reason: Their habitat of wetlands is being destroyed everywhere.

Options

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

Answer

To solve the question, we need to analyze both the assertion and the reason provided, and then determine the relationship between them.

### Step-by-step Solution:

1. **Understanding the Assertion**:
- The assertion states: "The maximum number of threatened species belong to Amphibia."
- We need to verify if this statement is true.
- According to current biodiversity data, amphibians are indeed among the most threatened groups of species, with approximately 8,000 species at risk. Thus, this assertion is true.

2. **Understanding the Reason**:
- The reason states: "Their habitat of wetlands is being destroyed everywhere."
- We need to evaluate if this reason is true and if it explains the assertion.
- Wetlands are crucial habitats for amphibians, as they rely on both terrestrial and aquatic environments. The destruction of wetlands due to urbanization, pollution, and climate change is indeed a significant threat to amphibian populations. Therefore, this reason is also true.

3. **Analyzing the Relationship**:
- Now, we must determine if the reason correctly explains the assertion.
- Since the destruction of wetland habitats is a major factor contributing to the high number of threatened amphibian species, the reason does indeed provide a correct explanation for the assertion.

4. **Conclusion**:
- Both the assertion and the reason are true, and the reason is the correct explanation of the assertion.

### Final Answer:
Both assertion and reason are true, and reason is the correct explanation of the assertion.