Match the following in the term of Book and Author.

List-I (Book)	List-II (Author)
a. lnterest groups in American Society	1. H. W. Ehrann
b. Interest groups of four continents	2. H. Zeigler
c. Anonymous Empire	3. Graham Wallas
d. Human Nature in Politics	4. Samuel Finer

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

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

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

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

Answer: Option D