Option 1 -> Incorrectly matches (A) with (II) and (D) with (IV), which are not the right meanings for these proverbs.
Option 2 -> Incorrectly matches (A) with (IV), (C) with (II), and (D) with (III), mixing up all the meanings.
Option 3 -> Correctly matches all proverbs: (A)-(III) serious situations need serious action; (B)-(IV) inexperienced people act recklessly; (C)-(I) don't harm yourself while trying to harm others; (D)-(II) desperate people grab at any hope.
Option 4 -> Incorrectly matches (A) with (II) and (D) with (III), reversing these two meanings.
Hence, Option 3: (A) - (III), (B) - (IV), (C) - (I), (D) - (II) -> This correctly pairs "desperate diseases/desperate remedies" with serious action for serious situations, "fools rush in" with reckless inexperience, "don't cut off your nose" with self-harm warning, and "drowning man/straw" with grasping at futile hope in desperation -> correct