<em>The type of propaganda technique that involves encouraging people to be like their friends is called Bandwagon.</em>
The propaganda technique of Bandwagon is very used by advertisers and marketers to promote their products and services. Bandwagon technique implies encouraging people to act or think in a way that other people do. To follow what others are doing or saying. To follow the masses. If people are using this product, the Bandwagon technique invites everybody to use because is fashion.
The other options of the question were a) Transfer, b) Plain folks, and c) Testimonial.
