Which of the following does not give the defined action of contraceptive?

The correct option is D Vasectomy - Prevents spermatogenesis
Contraception or birth control is a method or device used to prevent pregnancy. An ideal contraceptive should be compliant to the user, available readily, efficient, and reversible without any side-effects.
In barrier methods, fertilization is circumvented by putting a barrier between the sperm and the egg. Intrauterine devices (IUDs) deliver copper or hormones that can increase the phagocytosis of sperms and also crush their motility and fertilizing capacity. Hence the IUD reduces the chances of fertilization and implantation. Hormonal contraceptives of progestogens or progestogen–estrogen combinations offer very few side effects. With the help of these pills, ovulation and implantation can be inhibited along with modifying the condition of cervical mucus to block the entry of sperms.
Vasectomy is a surgical technique used to remove a small mass of the vasa deferentia in human males by making a short cut through the scrotum. This method helps in stopping pregnancy as the seminal fluid will be lacking sperms in the males who have undergone this process.