The cosmetics company, megalux, has traditionally sold its products through company-owned stores. however, in an effort to increase sales, megalux has undertaken a new two-part marketing plan, enlisting independent door-to-door salespeople to sell its product line and launching a major advertising campaign that has already increased public awareness of the megalux brand line. the independent dealers are reporting greatly increased cosmetics sales. however, industry analysts have expressed doubts that the marketing plan is bringing megalux any new success. which of the following, if true, best supports the claim that the analysts' doubts are well founded? a) in surveys of advertising effectiveness, the majority of people who have heard advertisements for megalux report that megalux is a superior brand of cosmetics. b) consumers of cosmetics often already have a full line of cosmetics products at home, but are still willing to try new brands. c) megalux's independent salespeople also sell other brands of cosmetics that are similar to megalux's but are less expensive, thus offering the salespeople a greater markup. d) the independent salespeople that were chosen to sell megalux's cosmetics were selected in part because they sell door to door in neighborhoods that are predominantly upper middle class. e) before megalux's advertising campaign was launched, many cosmetics industry analysts believed that sales of cosmetics sold door to door would actually decline over the next five years. spoiler: oa