Multiple-choice questions used in public opinion polls because they are easier for pollsters to measure.
Answer: Option B
Step-by-step explanation:
Multiple choice questions are the questions which give different choices to the respondent for a particular question and the respondent has to select any one option from the options provided to that particular question in the whole survey.
Evaluation of the survey which has multiple choice questions is very easy because there are many methods and machines available for evaluating the multiple choice questions where each option is given certain points and the survey is evaluated on the basis of those points. So it is easier for the pollster to use these.