Answer:
C. gatekeeper
Step-by-step explanation:
The gatekeeper function of the editor of a newspaper, of a news show, or of any editor working on a media platform, is to select and approve which stories are going to be told to the public, and which are not going to be told, this is a very delicate job since it marks the agenda of that editorial house and how it sees the world, it also points a finger on where to look to the audience, and what to reflect on, for example if the editor choses to run a story on a certain candidate mistakes rather than its successes it can damage the image of that candidate with the voters.