One reason the U.S. government might subsidize research of an alternative to crude-oil based gasoline is that
A) more substitutes will reduce the price of crude-oil based gasoline.
B) more substitutes will increase the elasticity of crude-oil based gasoline.
C) more substitutes will reduce the impact of supply shocks on the price of crude-oil based gasoline.
D) Any or all of the above.
ANSWER
D
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