Answer: D - Established that genocide was an international crime.
Explanation: The Nuremberg trials were held in the period from 1945 to 1949 in Germany. The judges were from the countries of the Allies, the United Kingdom, France, the Soviet Union and the United States. Nazi officers, financiers, and leaders were heard, and twelve of them were sentenced to death. The trial was held, and because of the need to designate such crimes as genocide as the greatest enemy of mankind, and that in the future it will never happen again.