Which of the following is the best way to express the difference between indeterminate sentences and determinate sentences?

A- Determinate sentences are set by a judge; indeterminate sentences are suggested by a counselor.
B-Indeterminate sentences require the parole officer’s recommendation; determinate sentences require the probation officer’s investigation.
C- Indeterminate sentences are open-ended; determinate sentences are solidly set.
D-Determinate sentences are written in the law book; indeterminate sentences are written in the jury room.