Bolton Tire Manufacturing and the Union Came to an Impasse

Bolton Tire Manufacturing and the union came to an impasse during negotiation of the collective bargaining agreement. Specifically, they could not agree on the wage increase for the employees. The union representative reported this information to the employees, and they staged a strike without the union's authorization.

A) The employees have engaged in an unfair labor practice strike.
B) The employees have engaged in an economic strike.
C) The employees have engaged in a sitdown strike.
D) None of the choices are correct.