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Below is a production possibilities curve for a large tract of prairie farm land. of jo Ameno 300 200 100 100 200 300 400 500 600 Quantity of wheat Refer to the graph above to answer this question. What is the total cost of producing 300 units of rye? Select one: O A. 2 units of wheat. B. 600 units of wheat. C. 0.5 units of wheat. D. 0 units of wheat