In the production possibilities frontier depicted in the graph, which of the following combinations of hats and bananas is unattainable?
A) 1 million pounds of bananas and 3 million hats
B) 2 million pounds of bananas and 5 million hats
C) 0 million pounds of bananas and 6 million hats
D) 4 million pounds of bananas and 4 million hats
Answer: D