Read the following statements regarding contraceptive devices: A. Lippes loop is a copper-releasing IUD that increases phagocytosis of sperms. B. Multiload 375 releases copper ions which suppress sperm motility and the fertilising capacity of sperms. C. LNG-20 is a hormone-releasing IUD that makes the uterus unsuitable for implantation. D. Vaults are non-medicated IUDs inserted into the female reproductive tract. How

Step-by-step solution

Statement A is incorrect because Lippes loop is a non-medicated IUD, not a copper-releasing IUD. Statement B is correct because Multiload 375 is a copper-releasing IUD, and the copper ions suppress sperm motility and fertilising capacity. Statement C is correct because LNG-20 is a hormone-releasing IUD that makes the uterus unsuitable for implantation and the cervix hostile to sperms. Statement D is incorrect because vaults are barrier contraceptives made of rubber, not intra-uterine devices (IUDs). Therefore, exac