The Figures Given Below Show the Demand (D)and Supply (S)

The figures given below show the demand (D) and supply (S) curves of labor in two different markets.Figure 16.3

-A college student's choice of a major and an occupation reflects:

A) each college student's future expectation of wage inflation.
B) a lack of information on the part of the students.
C) a lack of proper education and vocational training.
D) the return on investment in human capital.
E) the opportunity costs each college student faces.