At college X and at college Y, students pay $3,000 less than the equilibrium tuition. If the supply of openings is the same at both colleges, it follows that a shortage of openings will be greater at:____________.
a) college X than college Y.
b) college X than the surplus at college Y.
c) college Y than the surplus at college X.
d) college X than college Y if the demand is greater at college X.
e) ​college X than college Y if the demand is less at college X.