Refer to the figure above. Assume that column A and column B are the initial demand and supply curves. At a price of $50, the market would experience:

Refer to the figure above. Assume that column A and column B are the initial demand and supply curves. At a price of $50, the market would experience:
A.excess demand of 5 units.
B.an equilibrium.
C.excess supply of 70 units.
D.excess supply of 5 units.
正确答案：excess supply of 5 units.