<span>''They believe it would give them benefit when they purchased it.''</span>
The death of Hitler is the correct answer
There is no exact answer but 5-6 million Jews were killed out of 9 million. About half of the Jewish victims died in concentration camps or death camps(such as auschwitz) the other half died when nazi soldiers marched into many large and small towns in Germany, Poland, the Soviet Union and other areas and murdered people by the dozens or by the hundreds
That's just how life just is :3 hope this helps :3