Sophie is willing to sell her soccer ball for $10. Ruby is willing to pay $20 for the soccer ball. Sophie and Ruby agree on a price of $16. The gains from trade for Sophie equals ________ and the gains from trade for Ruby equals ________.
A. $5, $5
B. $6, $4
C. $10, $20
D. $4, $6
Answer: B
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Answer the following statement true (T) or false (F)
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