Match the following.

List-I (Industry Profession)	List-II (Pay Plan)
a. A pay plan in which most employees are part of the same compensation system	1. Elitest pay system
b. A pay plan in which different compensation system are established for employees or groups at different organisational levels	2. Skill based pay
c. A pay system in which employees are paid on the basis of the jobs they can do	3. Egalitarian pay system
d. The perceived fairness of the pay structure within a firm	4. Internal equity