Assertion : The skull of baby chimpanzee is more like adult human skull than adult chimpanzee skull.
Reason : Mammals are viviparous protected their unborn young inside the mother's body.

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

Explanation

**Step-by-Step Solution:**

1. **Understanding the Assertion**: The assertion states that the skull of a baby chimpanzee resembles the adult human skull more than it resembles the adult chimpanzee skull. This suggests that there are similarities in the developmental stages of humans and chimpanzees, particularly in their skull structure.

2. **Analyzing the Reason**: The reason provided states that mammals are viviparous, meaning they give birth to live young and protect their unborn offspring inside the mother’s body. This is a characteristic of mammals, but it does not directly explain the assertion regarding the similarity of skulls.

3. **Comparing the Two Statements**:
- The assertion is based on anatomical and evolutionary similarities between human and chimpanzee skulls, particularly during early developmental stages.
- The reason discusses a reproductive strategy of mammals, which does not provide a direct link to the anatomical comparison made in the assertion.

4. **Conclusion**: Both the assertion and the reason are true statements; however, the reason does not adequately explain the assertion. Therefore, the correct answer is that both statements are correct, but the reason is not a correct explanation for the assertion.

**Final Answer**: Both the assertion and reason are correct, but the reason does not explain the assertion.

---