Answer:
C. a provision that requires the employee to prove his case.
Explanation:
Arbitration is a form of resolving dispute outside of the court system. Here, the parties involved agrees to have their dispute settled through a third party other than a judge. Mandatory arbitration is a provision that is included in a contract , which requires concerned parties to resolve their contract dispute before an arbitrator instead of the normal court system.
In a situation where one of the parties to a contractual agreement feels cheated or the other party has not performed his term of the agreement, such may seek redress through an arbitrator. For a mandatory arbitration to be enforceable, there must be a provision that the employee pay the cost of the arbitrator's service and also a provision that the employer has the right to choose any arbitrator.