Nurses in a Unionized Hospital Are Paid "Compensatory Pay" When

Nurses in a unionized hospital are paid "compensatory pay" when working holidays equal to the number of hours worked with no extra compensation. Although they have suggested changes during the annual survey of employee satisfaction, management refuses to consider another system for compensatory pay. A trained member listened to both nurses and management to make recommendations that were not legally binding. This type of settlement is termed:

A) picketing.
B) binding arbitration.
C) mediation.
D) grievance.