Which Best Describes a Recent Reform of Juvenile Sentencing

Which best describes a recent reform of juvenile sentencing?

A) Some jurisdictions have passed mandatory or determinate incarceration sentences for juveniles convicted of serious felonies.
B) A concerted effort has been made to remove status offenders from the juvenile justice system and restrict their entry into institutional programs.
C) Effort has been made to standardize dispositions in juvenile court.
D) All of these represent recent reforms related to juvenile sentencing.