What type of appeal is demonstrated when a person encourages others to adopt a belief because it is popular among youth?

The correct choice highlights the "Join the Bandwagon Appeal," which refers to the strategy of encouraging others to adopt a certain belief or behavior primarily because it is popular or widely accepted, particularly among a specific demographic, such as youth in this case.

This type of appeal plays on the psychological tendency of individuals to conform to what they perceive as the norm or mainstream, often leading to the conclusion that the more people who believe or participate in something, the more valid or worthy that belief or action becomes. This technique is prevalent in advertising, political campaigns, and social movements, where the popularity of an idea is emphasized to persuade others to join in.

Understanding this appeal is crucial as it highlights how popularity can sometimes overshadow critical evaluation of the belief or action being advocated. The strategy relies on the collective validation derived from the larger group, which appeals to the desire for belonging and acceptance, especially among younger audiences.