Questions: Which country has the largest prison system? Russia United States China India

The answer is: United States

Explanation for each option:

1. Russia: While Russia has a significant prison population, it does not have the largest prison system in the world. According to the World Prison Brief, Russia's prison population is substantial but smaller compared to the United States and China.

2. United States: The United States has the largest prison system in the world. As of recent data, the U.S. has the highest incarceration rate and the largest number of people in prison. This is due to a combination of factors including strict sentencing laws, the war on drugs, and a high rate of recidivism.

3. China: China also has a large prison population, but it is generally considered to be the second largest after the United States. The exact numbers can be difficult to ascertain due to the lack of transparency in reporting by the Chinese government.

4. India: India has a large population, but its prison system is not the largest in the world. The incarceration rate in India is much lower compared to the United States and China.

In summary, the United States has the largest prison system in terms of both the number of incarcerated individuals and the incarceration rate.