Answer:
B) spreads the political messages of individuals and groups.
Explanation:
I believe all media influences public policy because nowadays all people no matter where they live, they are connected one way to another to the outside world. Through the different media like TV, radio, internet and all the social networks, people can spread political messages in a vast way, although we should be careful because there are also bad people who use the media to hurt others and take advantage of the minorities.