Which of the Following Is Not an Example of How

Which of the following is not an example of how self-serving biases have been found to inflate people's judgments of their groups?

A) Most university sorority members believe those in their sorority are less conceited than those in other sororities.
B) The majority of Dutch adults rate their marriage as better than most others.
C) Most Americans give their oldest child's public school a grade of A or B but give the nation's public schools a C or D.
D) Most Chinese volleyball players believe their teammates are better than Japanese players.