Which of the Following Is Correct with Regard to Corrections

Which of the following is correct with regard to corrections and the mentally ill?

A) Recent legislation prohibits the incarceration of the mentally ill.
B) Mentally ill inmates face few challenges because the structured life associated with incarceration helps control their behavior.
C) It is estimated that just under one-quarter of all prison and jail inmates have a mental health problem.
D) It is estimated that over half of all prison and jail inmates have a mental health problem.