Match the following.

List-I	List-II
a. N W Ayer	1. 21st century
b. Volney B Palmer	2. 20th century
c. Internet	3. 1842
d. Edward Bernays	4. 1869

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

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

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

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

Answer: Option D