4. One way unions can keep jobs for union members and to prevent management from circumventing the terms of the contract by moving work our of the bargaining unit is to have a clause in the collective bargaining agreement that states what? a. Technological developments must be implemented by management. b. Unions have the right to insist on members of management with whom they disagree must be submitted to arbitration. c. Require yearly pay increases for both union members and management. d. Specify that supervisors are not allowed to perform work that is commonly performed by someone in the bargaining unit