Which of the Following Statements Best Defines Educational Inflation

Which of the following statements best defines educational inflation?

A) As the supply of well-educated individuals increases, employee wages and advanced degrees' value declines due to an over supply.
B) As more and more individuals obtain high school diplomas, the value of a high school education decreases.
C) As more individuals obtain high school diplomas, more individuals obtain college degrees which devalues college degrees.
D) As more individuals desire an education, the cost of that education increases.
E) None are correct