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Answer:
Running commercials, sending out mass mailings, and organizing protests are all methods used by interest groups primarily to influence __public opinion________The answer to your question is A public opinion
Explanation:
Running commercials, sending out mass mailings, and organizing protests are all methods used by interest groups primarily to influence the public opinion.
Option A is correct.
What is public opinion?
The aggregate opinion on a given topic or voting desire relevant to a society is known as public opinion.
The public opinion used various methods to express the willingness. This method includes the Running commercials, sending out mass mailings, and organizing protests, and are used by the interest groups.
Option A is correct.
Learn more about the public opinion, refer to:
https://brainly.com/question/24262123