Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Diaphragms, cervical caps and vaults are barriers made of rubber that are inserted into the female reproductive tract to cover the cervix during coitus.
Reason (R): Diaphragms, cervical caps and vaults prevent conception by blocking the entry of sperms through the cervix.
In the light of the above statements, choose the most appropriate answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Both (A) and (R) are true and (R) is the correct explanation of (A).
Assertion (A): Diaphragms, cervical caps and vaults are barriers made of rubber that are inserted into the female reproductive tract to cover the cervix during coitus. — True. NCERT describes these three female barriers in these words.
Reason (R): Diaphragms, cervical caps and vaults prevent conception by blocking the entry of sperms through the cervix. — True. This is how they work.
A says what these devices are and where they are placed (over the cervix). R says how they prevent conception.
Why R explains A? Sperms reach the uterus only through the cervix. These devices are placed over the cervix precisely so that this entry is blocked. R gives the purpose of placing the barrier over the cervix, so it explains A. Both statements are true and R is the correct explanation of A.
NCERT Extract:
Population Stabilisation and Birth Control – “… Diaphragms, cervical caps and vaults are also barriers made of rubber that are inserted into the female reproductive tract to cover the cervix during coitus. They prevent conception by blocking the entry of sperms through the cervix. They are reusable. Spermicidal creams, jellies and foams are usually used alongwith these barriers to increase their contraceptive efficiency.”