单选题 Sales of telephones have increased dramatically over the last year. In order to take advantage of this increase, Mammoth Industries plans to expand production of its own model of telephone, while continuing its already very extensive advertising of this product. Which of the following, if true, provides most support for the view that Mammoth Industries cannot increase its sales of telephones by adopting the plan outlined above?

A、 Although it sells all of the telephones that it produces, Mammoth Industries' share of all telephone sales has declined over the last year.
B、 Mammoth Industries' average inventory of telephones awaiting shipment to retailers has declined slightly over the last year.
C、 Advertising has made the brand name of Mammoth Industries' telephones widely known, but few consumers know that Mammoth industries owns this brand.
D、 Mammoth Industries' telephone is one of the three brands of telephone that have together accounted for the bulk of the last year's increase in sales.
E、 (E) Despite a slight decline in the retail price, sales of Mammoth Industries' telephones have fallen in the last year.

【正确答案】 E

【答案解析】[解析] 选项(E)指出尽管广告宣传很猛烈，但Mammoth企业已经不能赶上该行业销量增加的趋势了，因此生产更多的相同型号的电话不可能使Mammoth销量增加，(E)是正确答案；如果Mammoth已经卖出了它生产的所有电话，即使它失去了一些市场份额，如(A)所说，仍可能通过生产更多的电话来增加销量；选项(D)指出Mammoth的销量在增加；如果存货的减少是由于向零售商交付了更多的电话，对(B)也是类似的；只要顾客认识Mammoth企业的电话的品牌，如(C)所说，他们是否将品牌与Mammoth联系起来可能并不重要。