Multiple Choice
A market maker faces the following demand and supply for widgets.Eleven buyers are willing to buy at the following prices: $15,$14,$13,$12,$11,$10,$9,$8,$7,$6,$5.Eleven sellers are also willing to sell at the same prices.If the market maker makes three transactions,what is his total profit?
A) $12
B) $15
C) $18
D) $21
Correct Answer:

Verified
Correct Answer:
Verified
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