4. Which of the following combinations of cookies and coffee is not currently attainable but would be attainable if there was an improvement in overall production technology?
(A) 800 dozen cookies and 150 pounds of coffee
(B) 700 dozen cookies and 400 pounds of coffee
(C) 500 dozen cookies and 850 pounds of coffee
(D) 300 dozen cookies and 900 pounds of coffee
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