2. Tiffany’s misjudgment about the candidate stemmed from . (A) Racial stereotypes. (C) Racial stereotypes. (B) Invalid personal bias . (D) Emphasis on physical appearance

66. What is the practical value of Cerling’s research? (A) It helps analyze the quality of water in different regions. (B) It helps the police determine where a crime is committed. (C) It helps the police narrow down possibilities in detective work. (D) It helps identify the drinking habits of the person under investigation.