The correct answer is A) polls and surveys.
The other options of the question were B) campaign advertisements. C) press releases. D) presidential addresses.
The method that is used to measure public opinion in the United States is polls and surveys.
Mass Media outlets such as TV and Radio stations used polls and surveys before and during election time. The same happens with political parties and the candidates' campaign team. They are always monitoring the voters' preference regarding their political candidates. They like to take "the pulse" of voters to know their preferences.