Washington D.C.'s metro train system is being extended further into the neighboring states of Maryland and Virginia,thereby reducing the cost of commuting into the United States' capital.Other things being held constant,this can be expected to:
A)decrease the extent of the market for housing around Washington D.C.
B)increase the extent of the market for housing around Washington D.C.
C)have no effect on the extent of the market for housing around Washington D.C.as the actual geography remains unchanged.
D)have no effect on the extent of the market for housing around Washington D.C.as the range of houses available has not changed.
E)have no effect on the extent of the market for housing around Washington D.C.as property taxes have not changed.

Question

Quizplus · Accepted Answer

With the extension of the metro train system, it becomes easier for people to commute to Washington D.C. from neighboring states. This means that people who were previously unable or unwilling to live in D.C. due to high housing costs and long commutes now have an incentive to live in surrounding areas and commute to D.C. This increases the extent of the market for housing around Washington D.C. as more people are now potential homebuyers in the area.