Grievance procedures in a union contract are preferable to other methods of resolving workplace disputes because:

A) They give management greater control over disciplinary actions.
B) They decrease uncertainly and increase stability because unions fear losing the grievance in arbitration.
C) They decrease uncertainty and increase stability by employee adherence to negotiated rules.
D) They encourage employers to be more lenient with employees.

Grievance procedures in a union contract provide clear guidelines for resolving disputes between management and employees, which decreases uncertainty and increases stability in the workplace. By adhering to the negotiated rules, employees are less likely to engage in disruptive behavior, and management is more likely to follow consistent disciplinary practices. This can ultimately lead to more cooperative and productive workplace relationships. The other choices are not accurate, as grievance procedures in a union contract typically give more power to the union and employees, not management, and they do not necessarily encourage employers to be more lenient with employees.