Given below are two statements. One is labelled Assertion (A) and the other is labelled Reason (R).
Assertion (A): LNG-20 is a contraceptive device.
Reason (R): Copper ions suppress sperm motility and the fertilising capacity of the sperm.
In light of the above statements, choose the correct answer from the options given below.

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Both (A) and (R) are true and (R) is the correct explanation of (A).

Both (A) and (R) are true but (R) is not the correct explanation of (A).

(A) is true but (R) is false.

Both (A) and (R) are false.

answer is B.

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Detailed Solution

Both Assertion (A) and Reason (R) are true, but (R) does not explain (A).

Assertion (A) is true. LNG-20 is a hormonal intrauterine device (IUD) that releases levonorgestrel, a synthetic form of progesterone, to prevent pregnancy by primarily inhibiting ovulation, thickening cervical mucus, and thinning the uterine lining.

Reason (R) is also true. It explains the action of copper-containing IUDs, such as Copper T, Cu-7, and Multiload 375, which work by releasing copper ions that suppress sperm motility and fertilizing capacity, thereby preventing pregnancy.

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