Answer:
The correct answer is C, Informing voters about candidates, policies, and other matters on the public agenda.
Step-by-step explanation:
The media is important for democracy because it provides information about the public power so citizens can check if it's fulfilling its duties.
Public information is essential for public discussion. Without public discussion and decision about political matters there can be no democracy. Democracy is more than voting; it is public decision making. Without the informative and investigative role of the media there can be no real informed public discussion.