Match the following.

List-I	List-II
a. Public Administrative Principles	1. Willoughby
b. In American Public Administration intellectual Crisis	2. Waldo
c. Elements of Public Administration	3. Ostrom
d. Public Administration in a Time of Turbulence	4. F. M. Marx

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

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

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

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

Answer: Option D