Which of the following is NOT a type of interest group?

The correct answer identifies social clubs as not being a type of interest group. Interest groups are typically organized to advocate for specific issues, interests, or causes, and they actively engage in promoting their agendas to influence public policy.

Trade associations, professional organizations, and advocacy organizations are all forms of interest groups, as they seek to represent specific sectors, professions, or causes. Trade associations represent businesses and industries, professional organizations focus on the interests of individuals within a particular profession, and advocacy organizations are dedicated to promoting specific social or political causes.

In contrast, social clubs generally do not have a formal agenda related to advocacy or public policy influence; instead, they are more focused on providing social opportunities and community for their members. Thus, they do not fit the definition of an interest group in the context of political engagement and influence.