Consider a Competitive Market with 50 Identical Firms How Many Units Should a Firm in This Market Produce

Consider a competitive market with 50 identical firms.Suppose the market demand is given by the equation Q^D = 200 - 10P and the market supply is given by the equation Q^S = 10P.In addition,suppose the following table shows the marginal cost of production for various levels of output for firms in this market. $$\begin{array} { | c | c | } \hline \text { Output } & \text { Marginal Cost } \\\hline 0 & - - \\\hline 1 & 5 \\\hline 2 & 10 \\\hline 3 & 15 \\\hline 4 & 20 \\\hline 5 & 25 \\\hline\end{array}$$ How many units should a firm in this market produce to maximize profit?

A) 1 unit
B) 2 units
C) 3 units
D) 4 units