Recent Research Has Demonstrated That

Recent research has demonstrated that

A) all forms of sexuality education are equally effective and significantly reduce risky teenage behavior.
B) no one form of sexuality education is any more effective than any others,and have no effect on teenage sexual behavior.
C) comprehensive sexuality education can delay sexual intercourse,and improve contraceptive use.
D) all abstinence-based methods significantly increase contraceptive use and delay the age of sexual intercourse.