Option 1 -> Incorrectly pairs "hit the nail to injury" and "add insult in the air" - these are not valid idioms.
Option 2 -> Incorrectly pairs "hit the nail before the horse" and "build castles to injury" - these combinations don't form proper idioms.
Option 3 -> Correctly matches all idioms: "hit the nail on the head" (to be exactly right), "add insult to injury" (worsen a bad situation), "put the cart before the horse" (do things in wrong order), and "build castles in the air" (have unrealistic dreams).
Option 4 -> Incorrectly pairs "hit the nail in the air" and "put the cart to injury" - these are not recognized idioms.
Hence, Option 3: (A) - (IV), (B) - (I), (C) - (II), (D) - (III) -> This creates four well-known English idioms with their proper meanings intact. Each pairing reflects a commonly used expression in English language. -> correct