Table 13-3
​
​ ​
​
​
-Refer to Table 13-3

Table 13-3
​
​
$$\begin{array} { | c | c | c | c | c | } \hline \begin{array} { c } \text { Labor } \\\text { (Number of workers) }\end{array} & \begin{array} { c } \text { Output } \\\text { (Units) }\end{array} & \begin{array} { c } \text { Fixed Cost } \\\text { (Dollars) }\end{array} & \begin{array} { c } \text { Variable Cost } \\\text { (Dollars) }\end{array} & \begin{array} { c } \text { Total Cost } \\\text { (Dollars) }\end{array} \\\hline 0 & 0 & 50 & 0 & 50 \\\hline 1 & 90 & 50 & 20 & 70 \\\hline 2 & 170 & 50 & 40 & 90 \\\hline 3 & 230 & 50 & 60 & 110 \\\hline 4 & 240 & 50 & 80 & 130 \\\hline\end{array}$$ ​
​
​
-Refer to Table 13-3. At which number of workers does diminishing marginal product begin?

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