Assertion : When sperm enters in egg , one polar body is released in human .
Reason : At the time of ovulation eggs found in secondary Oocyte phase .

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion .
B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False .
D. If both Assertion & Reason are False.

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that when a sperm enters the egg, one polar body is released in humans. This is true. During the process of oogenesis, when the secondary oocyte is fertilized by a sperm, it completes meiosis II, resulting in the formation of a mature ovum and the release of a second polar body.

2. **Understanding the Reason**: The reason states that at the time of ovulation, eggs are found in the secondary oocyte phase. This is also true. At ovulation, the primary oocyte completes meiosis I and is released as a secondary oocyte.

3. **Analyzing the Relationship**: Although both the assertion and the reason are true, the reason does not explain the assertion. The release of the polar body occurs due to the completion of meiosis II after fertilization, not merely because the egg is in the secondary oocyte phase at ovulation.

4. **Conclusion**: Therefore, both statements are true, but the reason is not the correct explanation for the assertion. The correct answer is that both statements are true, but the reason does not support the assertion.

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

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