Answer: B
An in-group
Explanation:
An in-group is a small group of individuals that bond together as a result of shared experiences or interests. Members of an in-group are usually connected psychological even without being obvious of such connections. The connection above was the "shared fun of a rival fraternity" and as such the members had similar interests.
A. The Internet
This is as the internet has given the average American further ability to participate and influence the political process more easily than in the past. This is primarily due to the presence of social media which has been highly influential in the political process. For example, it is able to influence other people to change their views on political topics or to vote for a certain candidate during a political election.