Use the Figure Below to Answer the Following Questions

Use the figure below to answer the following questions. Figure 18.3.1
-Refer to Figure 18.3.1.The vertical distance between the demand curves of the high-skilled and low-skilled workers is

A) equal to the difference in the value of marginal product of the workers.
B) equal to the difference in the work ethic of the workers.
C) caused by discrimination against minorities.
D) caused by discrimination against women.
E) equal to the cost of acquiring human capital.