At the beginning of the fall semester, college towns experience large increases in their populations, causing a(n):

At the beginning of the fall semester, college towns experience large increases in their populations, causing a(n):
A.increase in the demand for apartments.
B.decrease in the quantity of apartments demanded.
C.increase in the supply of apartments.
D.decrease in the quantity of apartments supplied.
正确答案：increase in the demand for apartments.