Which is a contraceptive method with no side effects?

Which of the following is a hormone releasing Intra Uterine Device $(IUD)$?

Which of the following statements is not true w.r.t. tubectomy or tubal ligation?

Copper-$T$ prevents:

The process in which a small part of the $vas \ deferens$ is removed or tied up through a small incision is called:

What is the purpose of contraceptive pills?
$I$. They inhibit ovulation and implantation
$II$. They alter the quality of cervical mucous to prevent or retard the entry of sperms
$III$. They prevent the ejaculated semen from entering the female vagina
$IV$. They inhibit spermatogenesis