Question

which persuasive technique does the poster use? transfer testimonial bandwagon faulty logic

Explanation:

The bandwagon technique encourages people to do something by suggesting "everyone" is doing it. The poster says "Everyone loves to have clean hands!", which fits the bandwagon persuasive technique. Transfer uses symbols/associations, testimonial uses endorsements, and faulty logic has flawed reasoning—none match as well as bandwagon here.

Answer:

bandwagon