Match the Principles of Labour Welfare mentioned in List-I with the contents givenin List-II.

List-I	List-II
a. Principle of Social Responsibility of Industry	1. Concept of labour welfare must spread throughout the hierarchy of an organisation
b. Principle of Responsibility	2. Industry has an obligation towards its employees to lookafter their welfare
c. Principle of Totality of Welfare	3. Both employers and workers are responsible for labour welfare
d. Principle of Repersonalisation	4. Development of the human personality must be goal of welfare