Question

Match List-I with List-II:

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

Hint:

Sweet flag (Acorus calamus) has been used traditionally as both medicine and insect repellent.

Answer 1

The Correct Option is B

Acorus spp.: Commonly called Sweet flag (A
III)
Neophobia: Behavioral avoidance of new foods (single dose poison effect) (B
IV)
Chemosterilant: Colchicine is a known chemosterilant (C
I)
Tomafarin: Multiple
dose anticoagulant rodenticide (D
II)

Answer 2

Alternate approach - match by distinctive keyword, not full description:
Instead of explaining each pairing in detail, spot the one unmistakable keyword in each List-I term and pair it directly with its List-II match, then use elimination for the rest.
Chemosterilant is a term used almost exclusively for a chemical that induces sterility - Colchicine is the classic example, so Chemosterilant pairs with (I) directly, ruling out any option where C is not matched with I.
Tomafarin is a well-known multiple-dose anticoagulant rodenticide, so it pairs with (II), eliminating any option pairing D with something else.
With C-I and D-II fixed, only two terms remain: Acorus spp. (Sweet flag) and Neophobia (avoidance of new food after a single poison exposure), which must take the remaining tags (III) and (IV) respectively.
This leaves the combination A-III, B-IV, C-I, D-II, matching only the option where all four pairs agree.