The correct matching of books with their authors is as follows:
- (A) An Inquiry into the Nature and Causes of Wealth of Nations by Adam Smith (II): Published in 1776, this foundational text introduced concepts like the invisible hand and free-market economics.
- (B) Principles of Economics by Alfred Marshall (I): Published in 1890, it formalized modern economic theory, including supply and demand analysis.
- (C) The General Theory of Employment, Interest and Money by J.M. Keynes (IV): Published in 1936, it revolutionized macroeconomics by advocating government intervention to manage economic cycles.
- (D) The Theory of Monopolistic Competition by E.H. Chamberlin (III): Published in 1933, it introduced the concept of imperfect competition, distinguishing it from perfect competition and monopoly.
Thus, the correct pairing is (A) - (II), (B) - (I), (C) - (IV), (D) - (III), making option (3) correct.