Question

The bandwagon technique tells you what a famous person thinks or uses to get you to accept that idea or product.

Answer 1

The answer is false, because the bandwagon technique refers to the act of persuading an audience to buy or do something (as advertised) simply because others are doing it (lots of cigarette adverts use this technique, for reference). The type of propaganda defined in your question is the testimonial propaganda: "When a famous or figure endorses and supports a product, connecting the famous person with that product."