The birth control device not used by women is:
Diaphragm
Oral pill
Male Condom
Copper $T$
Diaphragms are contraceptive devices used by the 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
Progestasert and $LNG-20$ are the examples of
$A$ : Both vasectomy and tubectomy are very effective, as the failure rate of such surgical approaches is almost zero percent.
$R$ : Reversibility is poor
$CuT, LNG-20$ and $Cu7$ are examples of
Assertion : $Cu-T$ and $Cu-7$ do not suppresses sperm-motility.
Reason : Hormones released by them affect sperm motility.