In Sherif's Classic Study (1966), Two Groups of Boy Campers

In Sherif's classic study (1966) , two groups of boy campers were pitted against one another in competitive activities, such as a treasure hunt and tug-of-war. An intense rivalry between the groups developed. Sherif's study provides support for the

A) realistic conflict theory.
B) social dominance theory.
C) out-group homogeneity theory.
D) in-group favouritism.