Why has the number of inmates risen in the past two decades?

A 2014 report by the National Research Council identified two main causes of the increase in the United States' incarceration rate over the previous 40 years: longer prison sentences and increases in the likelihood of imprisonment.

Explanation:

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so you come to the correct conclusions and make the right decision based on good judgment and a clear mind and valid thought processes behind it, and not just hasty thinking and recklessness.

explanation:

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your answer would be a. true