Match the following descriptions of advertising campaigns with relevant terms.

List-I (Descriptions)	List-II (Terms)
a. Finding out product demand, competitors, etc.	1. Research
b. Knowledge of prospect buyers	2. Know the target audience
c. Evaluation of expenses on factors like media presentations, paper work etc.	3. Setting the budget
d. Planning of colours, graphics etc to be used in advertisement	4. Deciding a proper theme

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-3, b-1, c-4, d-2

Answer: Option A