Question

Assertion : Periodic abstinence is a method in which couples avoid from coitus from day $17$ to $27$ of menstrual cycle.
Reason : Periodic abstinence is a very effective method and $100 \%$ sure of birth control.

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

Answer 1

Answer: (D)

Periodic abstinence is a natural method in which the couples avoid or abstain from coitus from day $10$ to $17$ of the menstrual cycle when ovulation could be expected. The effectiveness of this method is limited because only a few women have regular menstrual cycle and thus the actual time of ovulation cannot be predicted as the ovulation in humans occurs about $14$ days before the onset of the next menstruation.