Who is most likely to use the central route to respond to persuasive messages? a. emma, an anthropology major, who is taking an economics class pass/fail in order to fulfill a college requirement b. danielle, who notices an eye-catching billboard for a brand of beer as she drives on the highway to her grandparents' house c. jorge, who plans to attend a guest lecture on worldwide water shortages, a topic about which he has read a great deal?