Assume the Following Total Cost Schedule for a Perfectly Competitive

Assume the following total cost schedule for a perfectly competitive firm. $$\begin{array} { | c | c | c | } \hline \text { Output } & \text { TVC } ( \$ ) & \text { TFC } ( \$ ) \\\hline 0 & 0 & 100 \\\hline 1 & 40 & 100 \\\hline 2 & 70 & 100 \\\hline 3 & 120 & 100 \\\hline 4 & 180 & 100 \\\hline 5 & 250 & 100 \\\hline 6 & 330 & 100 \\\hline\end{array}$$ TABLE 9- 2
-Refer to Table 9- 2.The total cost of producing 6 units of output is

A) $100.
B) $230.
C) $71.67.
D) $330.
E) $430.