Select the hormone-releasing Intra-Uterine Devices.

Step-by-step solution

INTRAUTERINE DEVICE (IUDs): These are small mechanical devices made up of plastic, copper or stainless steel. They are in the form of loop, coil, T or 7 shaped. IUD is inserted into the uterus of the female by an experienced gynaecologist. It could remain inside the uterus for up to 3 years. IUD prevents implantation of the blastocyst and prevents conception. It is a reliable method of birth control. There are 3 forms of IUDs: i) Non-medicated IUDs: These IUDs phagocytes sperms within the uterus. Ex: Lippes loop. i