Use the Information in the Table Below to Determine the Marginal

Multiple Choice

Use the information in the table below to determine the marginal cost of producing the sixth unit of output.
$$\begin{array} { l r r r r r r r r r } \text { Output } & 0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 \\\text { Cost } & 10 & 11 & 13 & 16 & 20 & 25 & 31 & 38 & 48\end{array}$$

A) 6
B) 31
C) 6/31
D) 31/6