Research on Risk Factors for Adolescent Sexual Activity Has Found

Research on risk factors for adolescent sexual activity has found all of the following, except:

A) lack of parental support is a risk factor for boys but not for girls.
B) as the number of risk factors increases, the likelihood of engaging in sexual intercourse increases.
C) the same risk factors that predict sexual activity for White adolescents also predict sexual activity among ethnic minority adolescents.
D) efforts aimed at predicting adolescent sexual activity must focus on more than one risk factor.