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 brand. Despite the fact that these dealers achieved dramatically increased sales of computers last month, however, analysts doubt that the marketing plan is bringing Super Comp the desired success.

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

(A) In market surveys, few respondents who had been exposed to SuperComp's advertising campaign said they thought there was no point in owning a home computer.
(B) People who own a home computer often buy a second such computer, but only rarely do people buy a third computer.
(C) SuperComp's dealers also sell other brands of computers that are very similar to SuperComp's but less expensive and that afford the dealers a significantly higher markup.
(D) The dealers who were chosen to sell SuperComp's computers were selected in part because their stores are located in shopping centers that attract relatively wealthy shoppers.
(E) Computer-industry analysts believed before the SuperComp campaign began that most consumers who already owned home computers were not yet ready to replace them.

OA C

Source: Official Guide