$A$ : 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
Assertion and Reason both are correct and also correct explanation.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
The birth control device not used by women is:
Choose correct pair.
$IUD$ stands for
Mention two advantages of lactational amenorrhea as a contraceptive method.
Choose the correct option for $A, B, C$ and $D$