At the Current Point of Production on a Nationʹs Production

At the current point of production on a nationʹs production possibilities frontier, the marginal benefit of a slice of pizza is 500 tacos per slice of pizza while the marginal cost of producing a slice of pizza is 750 tacos per slice of pizza. To be allocatively efficient, what should be done? $\begin{array}{|l|l|l|}\hline\begin{array}{l}\text { Quantity } \\\text { (millions of } \\\text { bushes of } \\\text { apples) }\end{array} & \begin{array}{l}\text { Marginal } \\\text { benefit } \\\text { (oranges per } \\\text { bushel) }\end{array} & \begin{array}{l}\text { Marginal Cost } \\\text { (oranges per } \\\text { bushel) }\end{array} \\\hline 5 & 10 & 1 \\\hline 10 & 8 & 3 \\\hline 15 & 6 & 6 \\\hline 20 & 4 & 9 \\\hline 25 & 2 & 12 \\\hline\end{array}$