$Cu$ ions released from copperreleasingintrauterine devices $(IUDs)$
make uterus unsuitable for implantation
increase phagocytosis of sperms
suppress sperm motility
prevent ovulation.
The method of sterilisation is
Vasectomy has no effect on the sexual life of male because :
It is oral contraceptive
In female sterilization .. $A$.. is cut and tied. This process is called ....$B$.... Fill correct option for $A$ and $B$