Table 8-1 Table 8-1 Shows the Technology of Production at the Matsuko's

Table 8-1
$\begin{array}{|c|c|}\hline \begin{array}{c}\text { Number of } \\\text { Workers }\end{array} & \begin{array}{c}\text { Mushrooms per } \\\text { Day (pounds) }\end{array} \\\hline 1 & 12 \\\hline 2 & 30 \\\hline 3 & 45 \\\hline 4 & 50 \\\hline 5 & 54 \\\hline 6 & 56 \\\hline\end{array}$ Table 8-1 shows the technology of production at the Matsuko's Mushroom Farm for the month of May.
-Refer to Table 8-1.Diminishing marginal returns sets in when the ________ worker is hired.

A) 2nd
B) 3rd
C) 4th
D) None of the above; the production function displays increasing marginal returns.