Why Is There Strong Economic Pressure to Grant Probation to Serious

Why is there strong economic pressure to grant probation to serious felony offenders?

A) Because treatment and rehabilitation programs can be coupled with probation,which result in cost effectiveness.
B) Because probation consistently results in an 80-90% success rate and is,therefore,money well spent.
C) Because it costs less than incarceration making it extremely attractive to policy makers.
D) Because prison overcrowding has resulted in federal funding cuts to other alternative sentencing programs.