High violence rates among White Americans in southern U.S. towns settled by Scots-Irish herders illustrate the impact of ________ on aggression.

A) ingroup bias
B) social influence
C) deindividuation
D) hindsight bias

Social influence is the correct answer because the violence rates among White Americans in southern U.S. towns settled by Scots-Irish herders can be attributed to cultural norms and values passed down through generations. These norms and values, influenced by the Scots-Irish herding culture, emphasize honor and retaliation, which impact aggressive behaviors. This is an example of how social influence, through cultural heritage and socialization, can shape behaviors and attitudes towards aggression.