Refer to the Table Shown A) Third Worker Is Hired

Multiple Choice

Refer to the table shown. Diminishing marginal productivity begins when the: $\begin{array}{|c|c|}\hline \text {Number of workers}&\text {Total output}\\\hline 1 & 4 \\\hline 2 & 10 \\\hline 3 & 18 \\\hline 4 & 28 \\\hline 5 & 35 \\\hline 6 & 41 \\\hline 7 & 45 \\\hline 8 & 48 \\\hline 9 & 50 \\\hline 10 & 49 \\\hline\end{array}$

A) third worker is hired.
B) fourth worker is hired.
C) fifth worker is hired.
D) sixth worker is hired.