Match the content of List I with List II.

List-I	List-II
a. Prevention and solution of the labour problem	1. Objective of public relations
b. Use various PR tools to achieve the goals	2. Advantage of public relations
c. Cost effectiveness	3. Function of public relations
d. No direct control	4. Disadvantage of public relations

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

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

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

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

Answer: Option D