A: Inability to conceive or produce children even after 2 years of unprotected sexual cohabitation is infertility.
R: Infertility is synonym for sterility.

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
B. If both Assertion & Reason are true but the reasons is not the correct expalanation of the assertion, then mark (2).
C. If Assertion is true statement but Reason is false, then mark (3)
D. If both Assertion and Reason are false statements, then mark (4).

Answer

To solve the question, we need to analyze both the assertion (A) and the reason (R) provided in the statement.

### Step-by-Step Solution:

1. **Understanding the Assertion (A)**:
- The assertion states that "inability to conceive or produce children even after 2 years of unprotected sexual cohabitation is infertility."
- This definition is accurate. Infertility is indeed defined as the inability to conceive after a year of regular unprotected intercourse, but in some definitions, this period can extend to two years, especially in the context of certain medical evaluations.

2. **Understanding the Reason (R)**:
- The reason states that "infertility is a synonym for sterility."
- While both terms relate to the inability to conceive, they are not strictly synonymous. Infertility can sometimes be treated or resolved, while sterility refers to a complete inability to conceive, often due to medical or biological reasons.

3. **Evaluating the Truth of Each Statement**:
- Both the assertion and the reason are true statements individually.
- However, the reason does not accurately explain the assertion. Infertility encompasses a broader range of conditions and potential treatments, while sterility implies a more permanent condition.

4. **Conclusion**:
- Since both statements are true but the reason does not correctly explain the assertion, the correct answer is:
- **Both assertion and reason are true, but the reason is not the correct explanation of the assertion.**

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

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