Table 72 -Refer to Table 7

question 9

Multiple Choice

Table 7.2
$$\begin{array} { c c } \text { Labor } & \begin{array} { c } \text { Total Froduct } \\\text { (pairs of shoes) }\end{array} \\\hline 0 & 0 \\1 & 20 \\2 & 50 \\3 & 75 \\4 & 80 \\5 & 75\end{array}$$
-Refer to Table 7.2,which shows labor and the quantity of shoes produced by a firm.At which points do negative marginal returns set in?

• A)before the first unit of labor
• B)between the first and second units of labor
• C)between the second and third units of labor
• D)between the third and fourth units of labor
• E)between the fourth and fifth units of labor

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