Which of the following statements is true of a progressive discipline system?

Which of the following statements is true of a progressive discipline system?
A. It is objective, immediate, and impersonal
B. It always involves four parties: the employee, the union, the company, and the courts
C. It communicates unacceptable behavior and responds to a series of offenses with increasing forcefulness
D. It is a speedy process
E. It includes peer reviews, mediation, and arbitration