Table 74 -Refer to Table 7

Multiple Choice

Table 7.4
$$\begin{array} { c c c } \begin{array} { c } \text { Units of } \\\text { Labor }\end{array} & \begin{array} { c } \text { Total } \\\text { Product }\end{array} & \begin{array} { c } \text { Marginal } \\\text { Product }\end{array} \\\hline 0 & 0 & - \\1 & 6 & 6 \\2 & 14 & 8 \\3 & 24 & 10 \\4 & 36 & 12 \\5 & 42 & 6 \\6 & 46 & 4\end{array}$$
-Refer to Table 7.4,which shows labor,total product,and marginal product for a firm.Marginal returns begin to diminish with the hiring of the _____ worker.

A) second
B) third
C) fourth
D) fifth
E) sixth