Refer to the Following $\begin{array}{rr}\text { Output } & \text { Total Cost } \\\hline 0 & \$ 300 \\50 & 800 \\100 & 1050 \\150 & 1650 \\200 & 2400\end{array}$

Multiple Choice

Refer to the following:

$\begin{array}{rr}\text { Output } & \text { Total Cost } \\\hline 0 & \$ 300 \\50 & 800 \\100 & 1050 \\150 & 1650 \\200 & 2400\end{array}$
-The additional cost of producing the 60th unit of output is:

A) $5
B) $250
C) $8
D) $120
E) $80