GMAT Critical Reasoning
Certain politicians in the country of Birangi argue that a 50 percent tax on new automobiles would halt the rapid increase of automobiles on Birangi's roads and thereby slow the deterioration of Birangi's air quality. Although most experts agree that such a tax would result in fewer Birangians buying new vehicles and gradually reduce the number of automobiles on Birangi's roads, they contend that it would have little impact on Birangi's air-quality problem.
Which of the following, if true in Birangi, would most strongly support the experts' contention about the effect of the proposed automobile tax on Birangi's air-quality problem?
- A Automobile emissions are the largest single source of air pollution.
- B Some of the proceeds from the new tax would go toward expanding the nonpolluting commuter rail system.
- C Currently, the sales tax on new tax on new automobiles is considerably lower than 50 percent.
- D Automobiles become less fuel efficient and therefore contribute more to air pollution as they age.
- E The scrapping of automobiles causes insignificant amounts of air pollution.
Correct Answer: D