Progestasert is an IUD which make the uterus unsuitable and cervix hostile to the sperms as it is
IUCD( Intrautrine devices) - These devices are plastic or metal objects placed in the uterus of the female by a doctor. These may be categorized as non- medicated IUDs (Lippes loop), copper releasing IUDs (Cu T, Cu 7; multiload 375) and the hormone releasing IUDs (Progestasert, LNG- 20). The hormone releasing IUDs, in addition, turns the cervix hostile to spermatozoa and bring changes in the uterus making it unsuitable for implantation. So, the correct answer is 'Hormone releasing IUD'.