In Their Longitudinal Study of Aggression, Nagin and Tremblay (1999)

In their longitudinal study of aggression, Nagin and Tremblay (1999) found that:

A) most of the boys who were particularly aggressive in kindergarten were still aggressive in high school
B) few of the boys who were particularly aggressive in kindergarten were still aggressive in high school
C) girls who were aggressive in kindergarten were still aggressive in high school
D) children who were aggressive in kindergarten and came from aggressive families but not those who came from more peaceful families became more aggressive in high school
E) continued aggression from kindergarten through secondary school depended on genetic factor