The Table Above Lists Seven Points on the Production Possibilities

The table above lists seven points on the production possibilities frontier for pizza and CDs. Graph the PPF. What is the opportunity cost of producing the first four pizzas? What is the opportunity cost of producing the 10th pizza. What is the opportunity cost of producing the first 12 CDs? What is the opportunity cost of producing the 26th CD? $$\begin{array} { | l | l | l | l | } \hline \begin{array} { l } \text { Production } \\\text { point }\end{array} & \begin{array} { l } \text { Milk } \\\text { (gallons) }\end{array} && \begin{array} { l } \text { Shirts } \\\text { (number) }\end{array} \\\hline A & 0 & \text { and } & 100 \\\hline B & 2 & \text { and } & 90 \\\hline C & 4 & \text { and } & 70 \\\hline D & 6 & \text { and } & 40 \\\hline E & 8 & \text { and } & 0 \\\hline\end{array}$$