CoolaCola Inc and the International Federation of Bottlers Had Been

CoolaCola Inc and the International Federation of Bottlers had been without a contract for several months when the union walked away from the negotiating table. In order to show the union that it "meant business," the employer locked the workers out the next day. Is CoolaCola justified in locking out its employees?

A) Yes, but only after the first round of negotiations breaks down.
B) Yes, so long as the lockout is intended to force concessions from the union.
C) No, unless it is a temporary measure based on financial reasons during a strike.
D) No. An employer may never lockout employees.
E) none of the above