Jack and Adam Were the Employees of Steel Co

Jack and Adam were the employees of Steel Co. Inc. Both of them performed equal work in the industry, however, the company decided to give a 40 percent hike to Jack because he was senior to Adam, whereas Adam was only given a 20 percent pay hike to his salary. In this scenario, the company wage differential is justified under the:

A) Bennett Amendment.
B) discretionary power of company.
C) public policy exception.
D) Lilly Ledbetter Fair Pay Act.