True or false: (Explanations are not needed. Thanks!)

14. A check-off is a method of deducting by the employer from the employee's pay at prescribed periods the amounts due to the union for fees, fines, or assessment.

15. Freedom period is the last sixty (60) days of the fifth (5th) year of the collective bargaining agreement.

16. Re-run election is an election voluntarily agreed upon by the parties with or without the intervention of the DOLE, to determine the issue of majority representation of all the workers in the appropriate collective bargaining unit.

17. Consent election is ordered by the Department of Labor and Employment.

18. Any collective bargaining agreement that the parties may enter into shall insofar as the representation aspect is concerned, be for a term of five years.

19. Grievance machinery is machinery for the adjustment and resolution of grievances arising from the interpretation or implementation of their collective bargaining agreements and those arising from the interpretation or enforcement of company personnel policies.

20. Collective negotiation agreement refers to the negotiated contract between a legitimate labor organization and the employer concerning wages, hours of work, and all other terms and conditions of employment in a bargaining unit, including mandatory provisions for grievances and arbitration machinery.

What are the limitations on the exercise of management prerogative?