-The Table Above Lists Six Points on the Production Possibilities

Multiple Choice

$$\begin{array} { | l | l | } \hline \begin{array} { l } \text { Cheese } \\\text { (tons) }\end{array} & \begin{array} { l } \text { DVDs } \\\text { (thousands } \\\text { ) }\end{array} \\\hline 0 & 60 \\\hline 2 & 56 \\\hline 4 & 48 \\\hline 6 & 36 \\\hline 8 & 20 \\\hline 10 & 0 \\\hline\end{array}$$
-The table above lists six points on the production possibilities frontier for cheese and DVDs. What is the opportunity cost of producing the 7th ton of cheese?

A) 8 DVDs per ton of cheese
B) 28 DVDs per ton of cheese
C) 20 DVDs per ton of cheese
D) 16 DVDs per ton of cheese