The diaphragm is a rubber dome-shaped structure that stops sperms from entering into:

$A$: Lactational amenorrhoea is one of the natural methods of birth control.
$R$: High levels of prolactin inhibit the secretion of gonadotropins.

Match the following methods $(A-D)$ with their mode of action $(i-iv)$ for contraception and select the correct option:

Method	Mode of Action
$(A)$ Pills	$(i)$ Prevents sperm from reaching the cervix
$(B)$ Condom	$(ii)$ Prevents implantation
$(C)$ Vasectomy	$(iii)$ Inhibits ovulation
$(D)$ Copper-$T$	$(iv)$ Semen contains no sperm

$A$ contraceptive pill contains

The action of a vaginal diaphragm is

Match the following columns:

Column-$I$	Column-$II$
$P$. Surgical methods	$I$. Easy
$Q$. Oral pills	$II$. Tubectomy
$R$. $IUDs$	$III$. Withdrawal
$S$. Barrier methods	$IV$. Diaphragm
$T$. Natural methods	$V$. $Cu 7$