Most Economists Believe That There Are Positive Externalities Associated with Education

Most economists believe that there are positive externalities associated with education. If they're right, the market for education fails to provide an efficient or socially optimal allocation of resources because the equilibrium

A) price and quantity would be too high
B) price would be too low and quantity would be too high
C) price and quantity would be too low
D) price would be too high and quantity would be too low
E) price and quantity would be just right