A political advisor uses a Gallup poll to determine the public’s opinion on gun control before advising a presidential candidate on which stance to support.

A Gallup poll uses scientific methods to measure public opinion, so its results can give the campaign reliable evidence about voters’ views on gun control. That evidence can help the team advise the candidate’s stance. Choice D, “Polls that are scientifically vetted will help a campaign team provide accurate evidence on public opinion,” best describes this use.

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