Match the following columns

Column I	Column II
a. Theory of rent	1. Edward H
b. Quasi rent	2. Adam Smith
c. Monopolistic competition	3. Alfred Marshall
d. Theory of Wealth of Nation	4. Ricardio

A. a-3, b-4, c-2, d-1

B. a-4, b-3, c-1, d-2

C. a-4, b-2, c-1, d-3

D. a-2, b-3, c-4, d-1

Answer: Option B