Respuesta :
Answer:scientific polls
Explanation:
Public opinion is best measured by public opinion polls, based on scientific polling techniques.
Scientific polls are the most reliable measure of public opinion. As it randomly takes the people for survey.
What is the difference between a scientific poll and an informal poll?
Straw polls and honor-system polls are done among self-selected people and are referred to as "unscientific," whereas opinion polls are often conducted with statistical selection procedures in place.
Thus, option B is correct.
For more details about the difference between a scientific poll and an informal poll, click here:
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