The correct answer is A) they are used as warehouses for the unwanted.
One measure of humanity is how society treats its deviants. An examination of prisons in the U.S. today would highlight that they are used as warehouses for the unwanted.
Prisons must rethink the purpose of having "deviants" in there. It helps no one to have prisons that are used to put "nondesirable" people. They have to be reformation places where prisoners can receive help to change their conduct, develop a positive skill or a profession, to put them back into society as a reformed individual that can fit in some roles in society.