Prior to collective bargaining for a new labor contract, both the management and the union members of a shoe factory decide that it is important that they discuss the issue of the employment of contingent workers in the organization. both parties thereby include it as a negotiable point for the bargaining session that, if agreed upon, will be entered into the new contract. this point of negotiation falls under the category of . prohibited items. b. permissive items. c. intellectual items. d. mandatory items