You just saw an advertisement that asks, "All your friends have switched to our pizza; when will you?" What technique has the advertising company used to persuade you to get the pizza?
A. Flattery
B. Bandwagon
C. Urgency
D. Testimonials
Companies use other people who use their product to persuade others. This is because people want to "fit in" with other people, which is one of the reasons why people use the iPhone, lots of people use it.