Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions. Now listen to the interview. Which of the following statements is TRUE about Professor Kimball’s survey
A. Some people don’t want to take it because it’s too time-consuming. B. The results might not be objective enough. C. The survey aims to measure Americans’ happiness. D. The survey has been conducted for three months.