Bricklayers Union Represents Workers of Construction Inc

Bricklayers Union represents workers of Construction Inc. The union and the employer bargain in good faith but hold genuine differences of opinion. The union may call a strike

A) if the union believes that the parties have reached a stalemate.
B) to form a barrier and deny management access to the workplace.
C) as a coercive tactic, against the employer's suppliers or customers.
D) under no circumstances.