Statement I: Coitus interruptus is a barrier method of birth control in which the male partner withdraws his penis from the vagina just before ejaculation so as to avoid insemination.
Statement II: Copper-releasing IUDs, such as CuT and Cu7, are natural methods of contraception.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Both statements I and II are incorrect.
Methods of contraception fall into groups: natural, barrier, IUDs, oral pills, injectables, implants and surgical methods. Natural methods use no device or chemical; they only avoid the meeting of ovum and sperms. Barrier methods place a physical barrier, such as a condom, between them.
Statement I: Coitus interruptus is a barrier method of birth control in which the male partner withdraws his penis from the vagina just before ejaculation so as to avoid insemination. — False. The description of withdrawal is right, but no barrier is used. Coitus interruptus is a natural method.
Statement II: Copper-releasing IUDs, such as CuT and Cu7, are natural methods of contraception. — False. CuT and Cu7 are intra uterine devices inserted into the uterus by a doctor. The copper ions they release suppress sperm motility. They are not a natural method.
NCERT Extract:
Population Stabilisation and Birth Control – “… Natural methods work on the principle of avoiding chances of ovum and sperms meeting. … Withdrawal or coitus interruptus is another method in which the male partner withdraws his penis from the vagina just before ejaculation so as to avoid insemination. … Another effective and popular method is the use of Intra Uterine Devices (IUDs). … These Intra Uterine Devices are presently available as the non-medicated IUDs (e.g., Lippes loop), copper releasing IUDs (CuT, Cu7, Multiload 375) and the hormone releasing IUDs (Progestasert, LNG-20) (Figure 3.2).”