which of the following statements is false? select one: a. both sales promotions and publicity should be consistent with and reinforce the retailer's overall promotion objectives. b. sales promotions should seek to provide some type of short-term sales incentive. c. sales promotions can either stimulate trial, increase consumer demand, or improve product demand. d. sales promotions play a very minor role in most retailers' overall promotion strategy. e. sales promotions can be significant in helping the retailer differentiate itself from competitors.