The correct option is C a-4, b-1, c-2, d-3
Traditional method- Periodic abstinence Traditional contraceptive methods are the natural methods of contraception which avoids the physical meeting of sperm and ovum. Examples: Periodic abstinence, coitus interruptus, lactational amenorrhea.
Once a week pill- Saheli Saheli is an oral contraceptive non-steroidal pill. It acts on the estrogen receptors present in the uterus and eventually inhibits the implantation of embryos in the uterus. Unlike hormonal contraceptive pills, it has to be taken once a week.
Sterilisation technique-Tubectomy Sterilisation techniques are the surgical methods of contraception which prevents the transport of gametes. It includes vasectomy in males and tubectomy in females.
Intra uterine devices (IUDs)- Progestasert Intra uterine devices (IUDs) are the devices that are inserted into the uterus to prevent fertilisation and implantation. Examples include CuT, Cu7, LNG−20, Progestasert, lippes loop.