Final answer:
Option (c), The decision that reinforced arbitrators' authority as established by the Steelworkers' Trilogy is known as the Misco decision. This case emphasized the American legal system's support for arbitration in labor disputes.
Step-by-step explanation:
The decision which reinforced the wide latitude given to arbitrators' decision-making authority by the Steelworkers' Trilogy is the Misco decision. In this case, the United States Supreme Court reaffirmed the principles established in earlier decisions (United Steelworkers v. American Manufacturing Co., United Steelworkers v. Warrior & Gulf Navigation Co., and United Steelworkers v. Enterprise Wheel & Car Corp.), collectively known as the Steelworkers' Trilogy.
These precedents empowered arbitrators to have substantial authority and discretion in labor dispute resolutions, highlighting the importance of arbitration as a means to resolve labor conflicts and reduce industrial strife. The Steelworkers' Trilogy and the Misco decision collectively signal an era where arbitration was favored over strikes and other forms of industrial action, reflecting a shift to a less confrontational approach in labor-management relations.