单选题 Which of the following most logically completes the argument below?
In recent years, the proportion of car buyers who buy new cars rather than used cars has declined. Some consumers have attributed this change to an increase in new-car prices. As evidence of the price increase, they cite figures that show that, even adjusting for inflation, the price that the buyer of a new car pays, on average, is far higher now than a few years ago. This evidence is unpersuasive, however, because

A、 the value of a car that is bought new declines much more rapidly than does the value of a car that is bought used
B、 after someone has bought a car, it might be several years before that person next buys a car
C、 a decline in the proportion of car buyers who buy new cars must necessarily mean that the proportion who buy used cars has increased
D、 the relative increase in used-car sales might be explained by the decisions of only a small proportion of all car buyers
E、 (E) the change in the average price paid for a new car could result solely from more people's rejecting inexpensive new cars in favor of used cars

【正确答案】 E

【答案解析】[解析] 本题是要寻找一个选项能用来解释新汽车实际价格的上升不是购买新车比率下降的真正原因。(E)说明新汽车价格升高的原因是因为人们喜欢二手车而放弃了对廉价新车的购买，也就是说，在所卖出的新车中，廉价新车所占比重下降，而豪华昂贵的新车所占比重上升，所以所卖新车的平均价格必定上升。由此分析可知，(E)选项既说明了新车购买比例下降的原因又说明了新车平均价格上涨的原因，所以(E)为正确答案；(A)选项仅为购买新车的比例下降提供了另一个原因，而本题的要求是找一个能解释价格升高不是新汽车购买比例下降的原因的答案，所以(A)选项答非所问，为错误选项；(B)、(C)和(D)都是无关选项。