Demand for eco cars would be increased by all of the following strategies, except
a. a rebate system that gives people money for buying fuel-efficient cars and charges people more for buying gas-guzzling vehicles
b. establishing higher average fuel-efficiency standards for all new cars
c. including social and environmental costs in the price of gasoline
d. maintaining the status quo
e. establishing higher average fuel-efficiency standards for all new cars and including social and environmental costs in the price of gasoline
Answer: D
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