Which of the Following Is a Key Difference Between Mediation

Which of the following is a key difference between mediation and arbitration?

A) Mediation involves a third party, whereas arbitration is performed without third parties.
B) Arbitrators give suggestions, whereas mediators give directives.
C) Mediation is compulsory, whereas an arbitration is voluntary in nature.
D) Arbitration provides a legally binding settlement, whereas mediation is not binding.
E) Mediation has a win-lose orientation, whereas arbitration has a win-win orientation.