Most Research with Respect to Oral Sex Between Adolescents Has

Most research with respect to oral sex between adolescents has indicated that:

A) in general, most teenagers are more likely to engage in vaginal intercourse than oral sex.
B) many teenagers give and receive oral sex promiscuously.
C) there is a large proportion of adolescents who exclusively engage in oral sex.
D) the vast majority of teenagers who engage in oral sex also engage in sexual (vaginal) intercourse and promiscuity is not the norm for either activity.