Consider the Following Total Cost Schedule for a Perfectly Competitive

Consider the following total cost schedule for a perfectly competitive firm producing ball- point pens. $$\begin{array}{l}\begin{array} { | l | l | l | } \hline \begin{array} { l } \text { Output } \\\text { per period }\end{array} & \text { TVC } ( \$ ) & \text { TFC } ( \$ ) \\\hline 0 & 0 & 5 \\\hline 10 & 2 & 5 \\\hline 20 & 3 & 5 \\\hline 30 & 6 & 5 \\\hline 40 & 10 & 5 \\\hline 50 & 15 & 5 \\\hline\end{array}\\\text { TABLE 9- } 3\end{array}$$
-Refer to Table 9- 3. Suppose the prevailing market price for this firm's product is $0.40 and the firm produces its profit- maximizing level of output. At this price

A) the firm is suffering economic losses and this firm will exit the industry.
B) the firm should decrease output.
C) the firm is earning positive economic profits.
D) the firm is earning zero economic profits.
E) the firm should increase output.