What is one of the five main types of advertising that persuades by suggesting everyone is doing it?

The choice that identifies one of the five main types of advertising designed to persuade by suggesting that "everyone is doing it" is indeed bandwagon advertising. This approach taps into the psychological principle of conformity, where individuals feel compelled to join a trend or purchase a product because they perceive it as widely accepted or popular. The idea is that if many people are engaging in a behavior or using a product, it must be worthwhile, leading others to want to be a part of that group.

In contrast, testimonials rely on personal endorsements or experiences, attempting to persuade potential customers through the positive experiences of others. Scientific evidence uses data and studies to back up claims about a product's effectiveness, aiming to establish credibility and authority in a more factual manner. The plain folks approach strives to create relatability by presenting the product as a choice made by ordinary people, enhancing trust and approachability but not necessarily emphasizing popularity in the same way bandwagon advertising does.