Which of the following is a hormone-releasing $IUD$?

Which of these is used to control human population?

When can emergency contraceptives be used?

$IUDs$ are small objects made up of plastic or copper that are inserted in the uterine cavity. Which of the following statements are correct about $IUDs$?
$(a)$ $IUDs$ decrease phagocytosis of sperm within the uterus.
$(b)$ The released copper ions suppress the sperm motility.
$(c)$ $IUDs$ do not make the cervix hostile to the sperm.
$(d)$ $IUDs$ suppress the fertilization capacity of sperm.
$(e)$ The $IUDs$ require surgical intervention for their insertion in the uterine cavity.
Choose the most appropriate answer from the options given below:

The diaphragm is a rubber dome-shaped structure that stops sperms from entering into:

Assertion : Copper $-T$ is an effective contraceptive device in human females.
Reason : Copper $-T$ prevents passage of sperms from vagina upwards into fallopian tubes.