Answer:
The answer is: They communicate information to the public about the candidate or issue.
Explanation:
As you may know, before elections, candidates use political campaigns in order to convince the public that they are the best choice, thus, the first option cannot be possible for the main purpose of these political campaigns is to let the audience know that they already know what is the main issue and how they plan to solve it, that's what the audience mostly goes for when choosing who to vote for, they want to listen to arguments and realistic proposals, however, sometimes these only become failed promises. On the other hand, the spend most of their money and time for their political campaigns, so they'll hardly give funds to organizations, even though this could be view by people as positive. And finally, many candidates, on the contrary to the last option, raise theri voice to opposing views as to convince them, that's the idea.
