As an HR Professional, You Must Be Familiar with Collective

As an HR Professional, you must be familiar with collective bargaining agreements and the process that rights are given, contracts, and union and management cooperation. With this in mind, what is a rights arbitration?

A) It is a not a lawsuit, but a resolution of laws and their impact on existing contracts.
B) It is a lawsuit between the collective management and the collective union.
C) It is a formal hearing between the management and the union, to resolve grievances during the construction of a contract.
D) It is a formal hearing between management and union members to resolve grievances during the administration of a contract.