Table 112 -Refer to Table 11

Table 11.2
$$\begin{array} { | c | c | c | c | c | } \begin{array} { c } \text { Workers } \\\text { per Day }\end{array} & \text { Total Product } & \text { Marginal Product } & \begin{array} { c } \text { Total } \\\text { Revenue } \\( \$ ) \end{array} & \begin{array} { c } \text { Marginal } \\\text { Revenue } \\\text { Froduct } ( \$ ) \end{array} \\\hline 0 & 0 & - & 0 & - \\\hline 1 & 100 & & 1,000 & 1,000 \\\hline 2 & & 95 & 1,950 & 950 \\\hline 3 & 285 & 90 & & 900 \\\hline 4 & 370 & & 3,700 & 850 \\\hline 5 & & 80 & 4,500 & 800 \\\hline\end{array}$$
-Refer to Table 11.2,which shows the product price of a perfectly competitive firm and the output produced by the firm.When do diminishing marginal returns first become evident?

A) never
B) after the first worker
C) after the second worker
D) after the third worker
E) after the fourth worker