The Figure Given Below Shows the Demand Curves (D₁ and D₂)

The figure given below shows the demand curves (D₁ and D₂) and supply curves (S₁ and S₂) of labor in the labor market.Figure: 16.2

-The term compensating wage differential refers to:

A) the bargaining capacity of a monoposonist in the labor market.
B) the wage differences that arise from differences in the risk involved in different jobs.
C) the criteria on which a firm offers a 401K plan to all its employees or just some employees.
D) the wage differences that arise from difference in productivity of the workers in a firm.
E) the negotiating power of the trade union.