What defines an indeterminate sentence?

An indeterminate sentence is characterized by its nature of not specifying a definitive duration. Instead, it is structured with a minimum and maximum time frame. This allows for flexibility in sentencing, as the actual time served can vary based on behavioral factors, rehabilitation progress, and decisions made by parole boards. For instance, if someone receives a sentence of 5 to 10 years, they can be eligible for parole after serving 5 years, but the total time they may spend incarcerated can extend up to 10 years depending on their behavior and other considerations.

The other choices do not accurately reflect the definition of an indeterminate sentence. A specific duration implies a determinate sentence where the individual knows exactly how long they will serve. A sentence that ends immediately would not align with the concept of incarceration at all, and dealing only with misdemeanors also misconstrues the broader application of indeterminate sentences, which can apply to felonies as well.