lsat17-3-23

23. A medical journal used a questionnaire survey to determine whether a particular change in its format would increase its readership. Sixty-two percent of those who returned the questionnaire supported that change. On the basis of this outcome, the decision was made to introduce the new format.

Which one of the following, if it were determined to be true, would provide the best evidence that the journal's decision will have the desired effect?

(A) Of the readers who received questionnires, 90 percent returned them.

(B) Other journals have based format changes on survey results.

(C) The percentage of surveyed readers who like the format change was almost the same as the percentage of the entire potential readership who would like format change.

(D) It was determined that the new format would be less costly than the old format.

(E) Ninety percent of the readers who were dissatisfied with the old format and only 50 percent of the readers who like the old format returned their questionnaires.

这个题目答案没问题，我是想问一下response率和survey的结果在什么情况下会有联系，我记得GMAT作文里有一题argument有类似的回复率和结果的问题讲的是飞机场的旅客投诉的问题，说是投诉的人少就是满意（忽略了不投诉的别的原因），这和本题有相似点吗？请NN给讲讲。