The Figure Above Shows the Market for Airplanes

The figure above shows the market for airplanes.
-Suppose the airplane market is an oligopoly.According to the figure above,the price can range as high as ________ and as low as ________.

A) $13 million per plane; $1 million per plane
B) $30 million per plane; $13 million per plane
C) $13 million per plane; $13 million per plane
D) $1 million per plane; $1 million per plane
E) None of the above answers is correct.