$A$: Periodic abstinence is a natural method of contraception in which couples avoid or abstain from coitus from day $10$ to $17$ of the menstrual cycle,when ovulation is expected.
$R$: Day $10$ to day $17$ of the menstrual cycle is considered a safe period.
$R$: Day $10$ to day $17$ of the menstrual cycle is considered a safe period.
- AAssertion and Reason both are correct and Reason is the correct explanation of Assertion.
- BAssertion and Reason both are correct but Reason is not the correct explanation of Assertion.
- CAssertion is correct,but Reason is incorrect.
- DBoth Assertion and Reason are incorrect.
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