Match List-I with List-II and identify the correct answer from the options given below:

List-I (Name of Philosophy)	List-II (Directive Principle)
a. Welfarism	1. Promotion of cottage industry
b. Socialism	2. Better health and living standard
c. Gandhian philosophy	3. Promotion of international peace and security
d. Internationalism	4. Equal pay for equal work

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

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

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

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

Answer: Option D