In a Classic Study,a Group of European American Young Men

In a classic study,a group of European American young men at a summer camp were given a difficult test they were sure to fail.In addition,completing the test caused them to miss a trip to the movies,which was normally the high point of their weekly entertainment.Regarding their attitudes,the subjects in this study

A) consistently rated their own family members lower than people who had not been frustrated.
B) consistently rated members of two ethnic groups lower than they did on earlier attitudinal tests.
C) exhibited discriminatory behavior against lower-level staff members they encountered during the study.
D) became more subservient to the camp leaders.