The Figure Above Shows the Demand for College Education (D)

The figure above shows the demand for college education (D) , the marginal social benefit of college education (MSB) , and the marginal cost of the private schools (MC) .
-Using the figure above,suppose education is provided by public colleges,where tuition is set at $10,000 a year.When the market is in equilibrium,the marginal social benefit is ________,the marginal cost is ________,and the number of students enrolled is ________.

A) $25,000; $25,000; efficient
B) $25,000; $10,000; inefficient
C) $15,000; $25,000; inefficient
D) $15,000; $15,000; efficient
E) $25,000; $15,000; inefficient