Option 1 -> (A) Demand shifts right means demand increases. With supply unchanged, we move up the supply curve, causing both price and quantity to increase, matching (I).
Option 2 -> Incorrect matching. (A) would match (I), not (II).
Option 3 -> Incorrect matching. (C) would match (III), not (IV).
Option 4 -> Incorrect matching. All pairings are wrong.
Hence, Option 1: (A) - (I), (B) - (II), (C) - (III), (D) - (IV) -> (A) Demand increases → Price ↑, Quantity ↑. (B) Supply increases → Price ↓, Quantity ↑. (C) Both curves shift left → Quantity definitely decreases (price effect ambiguous). (D) Both curves shift right → Quantity definitely increases (price effect ambiguous). -> correct