If the Labour Union Acts to Maximize the Economic Rent

If the labour union acts to maximize the economic rent that its members receive, what will happen to employment and wages?

A) Wage will be lower than in the case of the absence of a labour union.
B) Employment will be lower than in the case of the absence of a labour union.
C) We cannot tell what the effect on employment would be, but wages will be higher than they would be in the absence of a union
D) Employment will be higher than in the case of the absence of a labour union.
E) We cannot tell what the effect on wages would be, but employment will be higher than it would be in the absence of a union