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Technological improvements have made electric cars far more cost-efficient in the last decade. However, the threshold of economic viability for electric cars (that is, the cost of running an electric car compared to a gasoline powered car) has remained unchanged. Which of the following, if true, does most to help explain why the increased cost-efficiency of electric cars has not decreased its threshold of economic viability?
Correct Answer: C
Explanation/Reference: Explanation: Improvements in electric cars have been matched by improvements in gasoline-powered cars so that their economic viability has not improved.