Which of the following contraceptive devices make uterus unsuitable for implantation?
(a) Progestasert (b) CuT
(c) Lippe's loop (d) Multiload
(a) All the options are examples of intra-uterine contraceptive devices (IUCDs). These are plastic or metal objects which are inserted by doctors in the uterus through vagina. Lippes loop is non-medicated IUCD. CuT and Multiload are copper releasing IUCDs, which suppress motility and fertilizing capacity of sperms. Progestasert is a hormone releasing IUCD which makes the uterus unsuitable for implanation and cervix hostile to the sperms.