Which of the following approaches does not give the defined action of contraceptive?
(a) Intra uterine devices Increase phagocytosis of sperms, suppress sperm motility and fertilising capacity of sperms
(b) Hormonal contraceptives Prevent/ retard entry of sperms, prevent ovulation and fertilisation
(c) Vasectomy Prevents spermatogenesis
(d) Barrier methods Prevent fertilisation
(c) In vasectomy, a small part of the vas-deferens is removed or tied up through a small incision on the scrotum in males. Vasectomy blocks the gamete transport’’ and does not affect spermatogenesis.