Which of the following statements is true of the Elmira Reformatory?

Answer choices:

a. the reformatory was organized so that inmates spent most of their day in solitary confinement

b. it used indeterminate sentences and followed the principles of the Irish system.

c. the practice of parole that is advocated abruptly ended when the Great Depression created a crime wave.

d. the prisoners could be conditionally released for supervision only when a court gave its approval.

B is the answer.