Match the following.

List-I (Concepts)	List-II (Meanings)
a. Marketing	1. State of felt deprivation of some basic satisfaction in a person
b. Needs	2. The systematic gathering, recording and analysing of marketing data
c. Marketing research	3. All or a particular combination of activities a firm uses in marketing its product
d. Marketing mix	4. The performance of business activities that direct the flow of goods and services from producer to consumers