In Their Comparison of the Social Patterns of Aggressive and Nonaggressive

In their comparison of the social patterns of aggressive and nonaggressive children, Robert Cairns and his colleagues discovered that

A) highly aggressive children were rarely nominated as a "best friend."
B) children in any given social clusters tend to vary widely in level of aggression.
C) aggressive children were as likely to belong to social clusters as nonaggressive children.
D) All of the alternatives are correct.