From a Union Perspective,what Is the Most Important Potential Benefit

From a union perspective,what is the most important potential benefit of first- contract arbitration provisions?

A) They can help unions achieve certification.
B) They allow ministerial discretion in their application.
C) They offer unions permanent protection against unfair employer labour practice.
D) They can prevent employers from refusing to bargain seriously in order to prevent the union from achieving a collective agreement.
E) They allow unions to avoid the unpleasant task of bargaining with unwilling employers.