NO.PZ2018091702000043
问题如下：
Perez made three statements about traditional risk tolerance questionnaire.
Statement 1: Risk tolerance questionnaires may work better as a diagnostic tool for institutional investors.
Statement 2: Risk tolerance questionnaires may fail emotionally biased individuals.
Statement 3: Risk tolerance questionnaires is most likely to be effective as a diagnostic tool for cognitive-based individuals.
How many statements are correct?
选项：
A.1
B.2
C.3
解释：
All three statements are correct.
Risk tolerance questionnaires may fail for emotionally biased individuals and work best for institutional investors, and they are generally effective for cognitive-based individuals.
如图，课件并没有说questionnair 会对cognitive individual最有可能有效，从课件的理解来看，it most likely works for institutional investors
