Match the following.

List-I (Theory)	List-II (Concepts)
a. Behavioural approach	1. Interaction between organisation and environment
b. Scientific management	2. Formulation of principles of organisation
c. Systems approach	3. Work done at the lowest level in organisation
d. Classical theory	4. People in the organisation

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

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

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

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

Answer: Option B