Which of the following is an example of ingroup bias?

a. Hinata talked only to her five best friends when she was in ninth grade.

b. Sabrina has been a New York Yankee fan since she was in fourth grade.

c. Kimia believes she is the best student in her AP®

Psychology class, but her grades are not as good as several students.

d. Francisco believes he is the best student in his AP®

Psychology class, and in fact he has the highest test average.

e. Derek believes his t-ball team is the best in the league.