What is opportunity cost of changing production from point D to point C? If you decide to increase production of corn from 2000 bushels to 4000 bushels, what is the opportunity cost?

Below is a table that displays the production output of both corn and wheat. Use the data provided to plot a production possibilities curve by graphing the combinations and then connecting the various points on a graph. Corn (100s of bushels) Wheat (100s of bushels) A 10 50 B 20 40 30 30 D 40 20 E 50 10