The Management and Union Representatives of Prime Manufacturing Are Bargaining

The management and union representatives of Prime Manufacturing are bargaining a new CBA.Management:

A) may use a lockout at any time to pressure the union into compromise.
B) may never use a lockout as a tactic to pressure the union.
C) may use a lockout if the parties have reached an impasse in their bargaining and management notifies the union before locking the employees out.
D) may use a lockout only as a retaliatory measure if and when the union has threatened a strike.