Diaphragms,cervical caps,and vaults are:

Diaphragms are contraceptive devices used by females. Choose the correct option from the statements given below:
$i$. They are introduced into the uterus
$ii$. They are placed to cover the cervical region
$iii$. They act as physical barriers for sperm entry
$iv$. They act as spermicidal agents

How do injectable contraceptives ($DMPA$ - Depot Medroxyprogesterone Acetate) prevent ovulation?

Identify the given figure.

Assertion: $HIV$ infection can be avoided by the use of condoms.
Reason: Condoms secrete anti-viral interferons.

Which of the following is not an Intra Uterine Device $(IUD)$?