What Was the Emphasis in the Rehabilitative Era

What was the emphasis in the Rehabilitative Era?

A) having inmates work and produce products that could help in making the prisons self-sustaining
B) the professionalizing of staff through recruitment and training, and the implementation of many self-improvement programs of prison management
C) reformation that expanded education and vocational programs and focused offenders' attention on their future
D) holding offenders accountable for their acts and being tough on criminals while keeping them isolated from law-abiding citizens