What affects the desirability of a​ product? Products become more desirable when A. movie starsmovie stars use a product because consumers who use the same product may feel more fashionable. B. celebritiescelebrities use a product because consumers who use the same product may feel closer to famous people. C. professional athletesprofessional athletes use a product because consumers perceive them to be particularly knowledgeable about it. D. both a and b. E. all of the above.