The right answer is most of the Jewish population was killed
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The plan of extermination against the Jews promoted by the Nazis during the Second War was drawn up after Hermann Göring approved its creation on July 31, 1941. This plan, called the "final solution", was created by Reinhard Heydrich and Heinrich Himmler and was the eradication of the Jews of Europe. He proposed that all Jews who could not work for the Nazis would be killed immediately, and those who were fit would be forced to work until exhaustion killed them.
The plan proposed by Heydrich and Himmler was based on some proposals that Hitler tried to put into practice in Eastern Europe until the middle of 1941, but that they had failed. First, there was the Hunger Plan, in which the Nazis tried to impose the death of 30 million people by starvation. Then there was the plan of total extermination of the Jews after the victory over the Soviet Union (according to Hitler's own plan). Finally, it was intended for the transformation of the Soviet Union into a colony of German exploration.
In the end, according to the American Jewish Yearbook, the Jewish population of Europe was about 9.5 million in 1933 and reduced to about 3.5 million in 1950.
