Question

Match List-I with List-II:

Choose the correct answer from the options given below:

• A. (A)-(III), (B)-(II), (C)-(I), (D)-(IV)
• B. (A)-(IV), (B)-(I), (C)-(III), (D)-(II)
• C. (A)-(I), (B)-(III), (C)-(IV), (D)-(II)
• D. (A)-(IV), (B)-(I), (C)-(II), (D)-(III)

Hint:

Classification of IUDs:
$\bullet$ Non-medicated: Lippes loop
$\bullet$ Copper releasing: CuT, Cu7, Multiload 375
$\bullet$ Hormone releasing: Progestasert, LNG-20
$\bullet$ Barriers: Condoms, Diaphragms, Cervical caps, Vaults

Answer 1

The Correct Option is D

Concept:
Contraceptive methods prevent unwanted pregnancies and are categorized into natural methods, barrier methods, intra-uterine devices (IUDs), oral contraceptives, and surgical sterilization methods.

Step 1: Matching Intra-Uterine Devices and Barriers:
1. Non-medicated IUDs: Inert plastic/polyethylene devices that promote phagocytosis of sperms within the uterus without releasing chemical agents. The primary example is Lippes loop. Thus, (A) matches with (IV).
2. Copper-releasing IUDs: Devices that slowly release cupric ions ($Cu^{2+}$) to suppress sperm motility and fertilizing capacity. Examples include CuT, Cu7, and Multiload 375. Thus, (B) matches with (I).
3. Hormone-releasing IUDs: Devices that release synthetic progestogens, making the uterus unsuitable for implantation and the cervix hostile to sperms. Examples include Progestasert and LNG-20. Thus, (C) matches with (II).
4. Barrier methods: Mechanical devices made of rubber/latex that prevent physical contact between sperm and ovum. Examples include diaphragms, cervical caps, and Vaults. Thus, (D) matches with (III).

Step 2: Compilation of Pairs:
(A)-(IV), (B)-(I), (C)-(II), (D)-(III).
This corresponds directly to Option (D).