In the 1990s,various Deterrence-Based Strategies Were Implemented Based on the Increase

In the 1990s,various deterrence-based strategies were implemented based on the increase in teenage violence. Which of the following is not one of those policies?

A) Legislators toughened juvenile sentencing codes and made it easier to waive juveniles to the adult court.
B) Police used aggressive tactics to deter membership in drug-trafficking gangs.
C) Some juvenile courts shifted from an emphasis on treatment to an emphasis on public safety.
D) Programs taught problem-solving skills that may include self-disclosure,listening,following instructions,and using self-control.