A: Once conception has occurred abortion can be induced by mifepristone drug.
R: Mifepristone is progesterone antagonistic.

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 assertion and reason question, we need to analyze both statements provided in the question.

### Step-by-Step Solution:

1. **Understanding the Assertion (A)**:
- The assertion states that "Once conception has occurred, abortion can be induced by mifepristone drug."
- This means that after a woman becomes pregnant, she can use mifepristone to terminate the pregnancy.

2. **Understanding the Reason (R)**:
- The reason states that "Mifepristone is a progesterone antagonist."
- Progesterone is a hormone that plays a crucial role in maintaining pregnancy. By being an antagonist, mifepristone blocks the action of progesterone.

3. **Connecting A and R**:
- The assertion is correct because mifepristone is indeed used for medical abortions and is effective in terminating early pregnancies.
- The reason is also correct because mifepristone acts by blocking progesterone, which is essential for the continuation of pregnancy.

4. **Evaluating the Relationship**:
- Since both the assertion and the reason are true, we need to determine if the reason correctly explains the assertion.
- The reason explains how mifepristone works to induce abortion, thus supporting the assertion.

5. **Conclusion**:
- Both the assertion and reason are true, and the reason is the correct explanation for the assertion. Therefore, the correct answer is that both statements are true, and the reason is the correct explanation of the assertion.

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

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