The purpose of tubectomy is to prevent:

Identify the odd one out among the following copper-releasing $IUDs$.

Match the following columns:

Column-$I$	Column-$II$
$A$. Pill	$1$. Intra uterine device
$B$. Condom	$2$. Prevents ovulation
$C$. Vasectomy	$3$. Prevents sperms from reaching to cervix
$D$. Cu-$T$	$4$. Semen contains no sperms

Which contraceptive pill was developed by $CDRI$?

Match List-$I$ with List-$II$ with respect to methods of contraception and their respective actions.

List-$I$	List-$II$
$(a)$ Diaphragms	$(i)$ Inhibit ovulation and implantation
$(b)$ Contraceptive pills	$(ii)$ Increase phagocytosis of sperm within uterus
$(c)$ Intra Uterine Device	$(iii)$ Absence of menstrual cycle and ovulation following parturition
$(d)$ Lactational amenorrhea	$(iv)$ They cover the cervix blocking the entry of sperms

Choose the correct answer from the options given below:

Possible ill-effects of hormonal methods for contraception are: