单选题 Price(Dollars per unit) Quantity Demanded (Units) Bert Ernie Grover Oscar 0.00 20 16 6 8 0.50 18 12 4 6 1.00 14 10 2 5 1.50 12 8 0 4 2.00 6 6 0 2 2.50 0 4 0 0 Refer to Table . If these are the only four buyers in the market, then when the price decreases from $2.00 to $1.50, the market quantity demanded