【正确答案】 D

【答案解析】[解析] 文章第一段的第三句说的是“This shows us that traditional assumptions about earning and spending are not always reliable.”说传统上有关消费和挣钱的说法是错误的，传统的说法在第二段的第一句话“If an economist were asked which of three groups borrow most-people with rising incomes，stable incomes，or declining income he would probably answer：those with declining incomes．”传统的说法认为收人降低的人会借钱最多，这样就说明B)是错误的，还有种传统的说法就是在第二段第四句说的是“if people who have money expect prices to go up，they will postpone buying．But research surveys have shown that this is not always true．”说的是人一有钱之后，就等着价格上涨，延迟购买，这也是错的，由此断定A)是错的，此外第二段倒数第五句“The expectations of price increases may not stimulate buying.”和倒数第二句“Furthermore，the rise in prices that has already taken place may be resented and buyer's resistance may be evoked．”证明价格的上涨不但不会刺激消费，反而引起消费者的抵触，他们会拒绝购买，这样只有D)符合题义。