The correct answer to this open question is the following.
Although there are no options attached or any particular reference or text, we can say the following.
The six ways tin that WWII holocaust was different from previous holocausts were:
1.- The suffering of the Jewish people started since Nasi leader took the power in 1933.
2.- Since September 1935, Jewish people were forced to leave public life in Germany due to the Nuremberg Laws.
3.- The Nazi government ordered Jews to wear the yellow David Star on their shirts, as a way to identify them and excluded from society.
4.- Jewish in Poland and Germany were sent to Getthos.
5.- German Nazis built concentration camps and Jews were sent there to perform forced labor.
6.- In the concentration camps, Nazis built gas chambers where they killed millions of Jews.
