Which Is True with Respect to the Prison System

Which is true with respect to the prison system?

A) The vast majority of people serving time serve their sentences in the community rather than in prison.
B) During the last 40 years or so, there has been a shift away from goals and philosophy that emphasize punishment to those that emphasize rehabilitation.
C) Research indicates that in general, incarceration is effective in reducing the risk of recidivism.
D) During the last 10 years or so, there has been a shift away from goals and philosophy that emphasize punishment to those that emphasize rehabilitation.