Refer to the Following Table Which Gives the Demand and Cost

Multiple Choice

Refer to the following table which gives the demand and cost data for a price-setting firm:
$$\begin{array} { c c c } \text { Price } & \text { Dutput } & \text { Tatal Cost } \\\hline \$ 20 & 7 & \mathbf { 3 6 } \\19 & \mathbf { 8 } & 45 \\1 \mathbf { 9 } & \mathbf { 9 } & \mathbf { 5 4 } \\17 & 10 & \mathbf { 6 3 } \\16 & 11 & 72 \\15 & 12 & \mathbf { 8 1 }\end{array}$$
-What is the profit-maximizing price?

A) $19
B) $18
C) $17
D) $16
E) $15