TOEFL Reading: ETS-TOEFL阅读机经 - K3H34DM7J_58B6TCL$

The author mentions "a foolish act committed in the company of friends" in order to A. give an idea that most people easily get embarrassed in a social environment B. show that most experiences activate a physiological reaction C. insist that an embarrassed reaction is usually unwarranted D. provide an example of an experience that generates emotion