Use the Figure Below to Answer the Following Questions

Use the figure below to answer the following questions. Figure 18.3.1
-The vertical distance between the two supply curves in Figure 18.3.1

A) is the compensation for the cost of acquiring human capital.
B) is the VMP of skill.
C) is the result of discrimination against low-skilled workers.
D) is the result of subsidies for high-skilled workers.
E) will disappear if there is free entry in the high-skilled market.