​A Market Maker Faces the Following Demand and Supply for Widgets.Eleven

question 5

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 bought and sold at the equilibrium price,what is his profit

• A)​$1
• B)$2.5
• C)$3​
• D)​$0

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