The Fact That Aggressive, Domineering Adolescents Are Often Found to Have

The fact that aggressive, domineering adolescents are often found to have higher androgen and/or testosterone levels than nonaggressive age mates do conclusively establishes that _____ .

A) higher concentrations of male sex hormones are one potent cause of aggression
B) males exceed females in aggression because of their higher concentrations of male sex hormones
C) both of these
D) none of these