Which appeal might suggest participating in an action to avoid social embarrassment?

The appeal that suggests participating in an action to avoid social embarrassment is the Join the Bandwagon Appeal. This type of appeal relies on the idea that people will be more inclined to engage in a behavior or support a cause if they see others doing so. The underlying concept is that individuals often desire to fit in with a group or follow trends to avoid feeling left out or embarrassed. By portraying an action as widely accepted or popular, the appeal encourages individuals to conform in order to maintain their social standing and avoid the discomfort of being perceived as an outsider.

In contrast, while the other appeals listed may influence behavior in different ways, they do not specifically focus on the fear of social embarrassment due to non-participation or non-conformity. For instance, a Folksy Appeal emphasizes relatable, down-to-earth messaging rather than addressing social dynamics; a Bargain Appeal highlights value or savings rather than social status; and an Appeal to Prejudice seeks to leverage existing biases or stereotypes, which is not inherently tied to the fear of embarrassment from not following a trend. Therefore, the Join the Bandwagon Appeal best captures the motivation to participate in an action to avoid social embarrassment.