$$\begin{array} { c c } \text { Output } & \text { Price } \\\hline 1 & \$ 30 \\2 & \$ 27 \\3 & \$ 24 \\4 & \$ 21 \\5 & \$ 18\end{array}$$

Multiple Choice

$$\begin{array} { c c } \text { Output } & \text { Price } \\\hline 1 & \$ 30 \\2 & \$ 27 \\3 & \$ 24 \\4 & \$ 21 \\5 & \$ 18\end{array}$$
-The marginal revenue that would be derived from production of the second unit would be

A) $30
B) $27
C) $24
D) $21
E) $18