An economy can produce only two goods at any one time. These are good X and one other good from A, B, C or D. The table shows the outputs of goods A, B, C and D with each output of good X when the economy's resources are fully employed. Which good must be produced with good X to show a production possibility curve with increasing costs? units X 0 100 200 300 400 A 0 20 40 60 80 B 110 70 40 20 0 C 120 90 60 30 0 D 140 120 90 50 0
✓ Correct answer
D: 140 120 90 50 0
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