$\text { Table 29.1a }$ -In Table 29

$\text { Table 29.1a }$
$\begin{array}{|l|l|l|}\hline \text { Capital } & \text { Labor } & \text { Output } \\\hline 10 & 1 & 40 \\\hline 10 & 2 & 90 \\\hline 10 & 3 & 150 \\\hline 10 & 4 & 200 \\\hline 10 & 5 & 240 \\\hline 10 & 6 & 270 \\\hline 10 & 7 & 290 \\\hline 10 & 8 & 300 \\\hline 10 & 9 & 300 \\\hline\end{array}$

-In Table 29.1a, when output is 270, the average product of labor is

A) 27
B) 30
C) 45
D) 50