From 1920 to 1973, all states and the federal government used sentencing and release procedures involving. a. determinate sentencing. b. mandatory minimums.
c. indeterminate sentences.
d. mandatory release.

C. Indeterminate sentences.

Explanation:

This is a form or system of jail term in which the culprit is seen to have no assigned amount of time to stay in jail. It is sometimes seen to rehabilitate the person been sent go jail and also downs to him that his being of good behaviour during his time in jail could grant him parole. It is explained that in this system, crime has a minimum and a maximum time to serve as punishment for the individual that committed that crime, and this will depend on the individual needs of the individual himself. Judges are free to pick a lot of options such as fines, probation, imprisonment and so on, and parole boards usually decide the releasing dates. In conjunction with time to spend while in prison, debate and in this article, we are going to look at the pros and also cons of this system, so that you can be a little more informed about the issue

answer; i believe that the correct answer is (d); // supercontinent