Match the List-I with List-II and select the correct answer:

List-I	List-II
a. Gross barter term of trade	1. D. H. Robertson
b. Income terms of trade	2. Jacob Veiner
c. Single factorial terms	3. Dorance
d. Utility terms of trade	4. Tanssig

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

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

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

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

Answer: Option C