题目选项分析

Manufacturers sometimes discount the price of a product to retailers for a promotion period when the product is advertised to consumers.Such promotions often result in a dramatic increase in amount of product sold by the manufacturers to retailers.Nevertheless.the manufacturers could often make more profit by not holding the promotions.

Which of the following, if true, most strongly supports the claim above about the manufacturers' profit?

【选项】For products that are not newly introduced. the purpose of such promotions is to keep the products in the minds of consumers and to attract consumers who are currently using competing products.