Assertion : Genital papillae help in copulation in earthworm.
Reason : Genital papillae lie in line with male gonopores.

Options

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

Answer

To analyze the assertion and reason provided in the question, we can break down the solution into clear steps:

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "Genital papillae help in copulation in earthworm."
- Genital papillae are indeed structures found in earthworms that play a role in the mating process.

2. **Understanding the Reason**:
- The reason states that "Genital papillae lie in line with male gonopores."
- Male gonopores are openings through which sperm is released during copulation, and the genital papillae are positioned near these gonopores.

3. **Evaluating the Relationship**:
- The assertion is true because genital papillae do assist in the process of copulation.
- The reason is also true as the genital papillae are aligned with the male gonopores, which is relevant to their function during mating.

4. **Determining the Correct Option**:
- The assertion is true and the reason is true, but the reason does not provide a correct explanation for the assertion. The genital papillae assist in copulation, but their alignment with the gonopores is not the primary reason for their role in copulation.

5. **Conclusion**:
- Therefore, the correct answer is that both the assertion and reason are true, but the reason is not a correct explanation of the assertion.

### Final Answer:
Both assertion and reason are true, but the reason is not a correct explanation of the assertion.

---