According to the Table Below,what Is the Marginal Cost of Producing

Multiple Choice

According to the table below,what is the marginal cost of producing 90 units of output?
$$\begin{array} { | l | l | l |} \hline \mathbf { Q } & \mathbf { F C } & \mathbf { V C } \\\hline 0 & 1,000 & 0 \\\hline 20 & 1,000 & 350 \\\hline 50 & 1,000 & 700 \\\hline 90 & 1,000 & 1,050 \\\hline 125 & 1,000 & 1,400 \\\hline 145 & 1,000 & 1,750 \\\hline 160 & 1,000 & 2,100 \\\hline\end{array}$$

A) 5.32
B) 8.75
C) 11.67
D) 21.00