Exhibit 7-12 Cost Schedule for Producing Pizza -By Filling in the Blanks in Exhibit 7-12, the Marginal

Exhibit 7-12 Cost schedule for producing pizza $$\begin{array} { | c | c | c | c | } \hline \text { Pizzas } & \begin{array} { c } \text { Fixed } \\\text { Cost }\end{array} & \begin{array} { c } \text { Variable } \\\text { Cost }\end{array} & \begin{array} { c } \text { Total } \\\text { Cost }\end{array} \\\hline 0 & \$ & \$ & \$ \\1 &&&48 \\2 &&17 \\3 &&27 \\4 &&&78 \\5 &40 \\6 &&64 \\7 &&80\\\hline\end{array}$$
-By filling in the blanks in Exhibit 7-12, the marginal cost of the fourth pizza is shown to be equal to:

A) $10.
B) $11.
C) $12.
D) $13.
E) $14.