Refer to the Figure Below A)1; 1
B)1; 2
C)2; 1
D)2; 4

Refer to the figure below. To increase output from 33 to 66 units requires ______ extra employee-hours; to increase output from 66 to 99 units requires ______ extra employee-hours. $$\begin{array} { | c | c | } \hline \begin{array} { c } \text { Output } \\\text { Per Day }\end{array} & \begin{array} { c } \text { Number of } \\\text { Employee } \\\text { Hours Per Day }\end{array} \\\hline 0 & 0 \\\hline 33 & 1 \\\hline 66 & 2 \\\hline 99 & 4 \\\hline 132 & 7 \\\hline 165 & 11 \\\hline\end{array}$$

A) 1; 1
B) 1; 2
C) 2; 1
D) 2; 4