Why are radio television and newspapers used in election campaign?

Correct answer: To carry election message to people

The governing concept is election campaigning and political communication. Candidates and parties use radio, television, newspapers, and other media to inform a large number of citizens about their programmes, policies, promises, candidates, and appeals. Media can also help voters compare alternatives and take part in public discussion, although campaign claims should be examined critically. Therefore option A is correct: these channels carry election messages to people. They do not remove voter lists, alter constituency boundaries, or close polling stations. Those matters belong to electoral administration and legal authorities, not to the ordinary purpose of campaign publicity. The question asks about communication with voters, so the broad outreach function of mass media is the relevant reason.