Three of the Following Statements Are True About Children's and Adolescents

Three of the following statements are true about children's and adolescents' participation in after-school activities. Which one is false?

A) Youngsters' academic achievement is slightly lower, apparently as a result of less time for studying.
B) Youngsters who participate in structured after-school programs are better behaved in the classroom.
C) High school students who participate in extracurricular activities are less likely to abuse alcohol or drugs.
D) High school students who are actively involved in their school's extracurricular activities are more likely to graduate.