Option 4: (A) - (III), (B) - (IV), (C) - (I), (D) - (II) -> This is the correct matching. (A) Cardinal Utility (III) allows utility to be expressed in numerical values (utils). (B) Marginal Utility (IV) is defined as the additional satisfaction gained from consuming one more unit of a good. (C) Total Utility (I) represents the aggregate satisfaction from consuming a given quantity of a commodity. (D) Ordinal Utility (II) involves ranking preferences without assigning specific numerical values, using ordinal rankings like 1st, 2nd, 3rd preference. -> correct