Suppose That a Single- Price Monopolist Knows the Following Information

Suppose that a single- price monopolist knows the following information: $\begin{array}{|l|l|l|l|l|l|l|l|}\hline \text { Price } & \text { Quantity } & \text { TR } & \text { MR } & \text { Fixed Cost } & \text { TC } & \text { ATC } & \text { MC } \\\hline \$ 9.00 & 1500 & & \$ 4.00 & \$ 7000 & & \$ 7.00 & \$ 5.00 \\\hline\end{array}$ The total profit being earned by this firm at the current level of output is

A) $1500.
B) $6500.
C) $13 500.
D) $10 500.
E) $3000.