Which of the following is an example of an unobtrusive measure?
A)A telephone interview with voters asking them how they intend to vote
B)A three-week laboratory experiment to see whether students who participate in an exercise program lose more weight than those who follow a special diet
C)A mailed questionnaire to mayors asking whether their town has an evacuation plan in case of a nuclear power plant disaster
D)Research on graffiti in a high-income neighbourhood
E)None of the above

Question

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The Answer of Which of the following is an example of an unobtrusive measure?
A)A telephone interview with voters asking them how they intend to vote
B)A three-week laboratory experiment to see whether students who participate in an exercise program lose more weight than those who follow a special diet
C)A mailed questionnaire to mayors asking whether their town has an evacuation plan in case of a nuclear power plant disaster
D)Research on graffiti in a high-income neighbourhood
E)None of the above

Which of the Following Is an Example of an Unobtrusive