A: Periodic abstinence is one such natural method of contraception in which the couples avoid or abstain from coitus from day 10 to 17 of the menstrual cycle, when ovulation could be expected.
R: Day 10 to day 17 of menstrual cycle is considered as safe period.

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

**Step-by-Step Solution:**

1. **Understanding Periodic Abstinence**: Periodic abstinence is a natural method of contraception where couples avoid sexual intercourse during certain days of the menstrual cycle to prevent pregnancy.

2. **Identifying the Fertile Window**: The fertile window is typically considered to be around the time of ovulation. Ovulation usually occurs around day 14 of a typical 28-day menstrual cycle, but it can vary from woman to woman.

3. **Days of Abstinence**: According to the assertion (A), couples should abstain from coitus from day 10 to day 17 of the menstrual cycle. This is based on the understanding that ovulation can occur during this time frame.

4. **Evaluating the Reason (R)**: The reason (R) states that days 10 to 17 are considered a "safe period." However, this is misleading. The days from 10 to 17 are actually the fertile period, not a safe period. During this time, the chances of conception are high if intercourse occurs.

5. **Conclusion**: The assertion (A) is true because it accurately describes periodic abstinence and the timing related to ovulation. However, the reason (R) is false because it incorrectly labels the fertile period as a safe period.

6. **Final Statement**: Therefore, the assertion is true, and the reason is false.

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