Use the Figure Below to Answer the Following Questions

Multiple Choice

Use the figure below to answer the following questions. Figure 12.4.6
-Prime Pharmaceuticals has developed a new asthma inhaler,for which it has a patent.An inhaler can be produced at a constant marginal cost of $2 per inhaler.The demand curve,marginal revenue curve,and marginal cost curve for this new asthma inhaler are shown in Figure 12.4.6.The patent gives Prime Pharmaceuticals a monopoly for its new inhaler.If Prime Pharmaceuticals can perfectly price discriminate,producer surplus is

A) $16 million.
B) zero.
C) $32 million.
D) $64 million.
E) $24 million.