题目选项分析

To persuade consumers to buy its personal computers for home use, SuperComp has enlisted computer dealers in shopping centers to sell its product and launched a major advertising campaign that has already increased public awareness of the SuperComp bran. Despite the fact that these dealers achieved dramatically increased sales of computers last month, however, analysts doubt that the marketing plan is brining Super Comp the desired success.

Which of the following, if true, best supports the claim that the analysts' doubt is well founded?

【选项】People who own a home computer often buy a second such computer, but only rarely do people buy a third computer.