Refer to the Table Shown A)5 Workers

Refer to the table shown. The firm would definitely not hire:

$\begin{array}{|c|c|}\hline \text { Number of workers } & \text { Total output } \\\hline 1 & 4 \\\hline 2 & 10 \\\hline 3 & 18 \\\hline 4 & 28 \\\hline 5 & 35 \\\hline 6 & 41 \\\hline 7 & 45 \\\hline 8 & 48 \\\hline 9 & 50 \\\hline 10 & 49 \\\hline\end{array}$

A) 5 workers.
B) 7 workers.
C) 9 workers.
D) 10 workers.