Refer to the Following Figure When Answering the Following Questions

Refer to the following figure when answering the following questions.
Figure 7.5: Labor Market
-Consider Figure 7.5. If the demand curve for college graduates is characterized by , which of the following is a reason why the demand for labor for college graduates is higher than that for high school students, characterized by
?

A) skill-based technological change for high school students
B) low saving rates
C) fewer college graduates than high school graduates
D) a growing number of college graduates
E) specialization