Answer :
Final answer:
Zyklon B gas was the product that most connected Degussa to the Holocaust, used in Auschwitz gas chambers to systematically murder millions of people, including Jews and other groups. Its implementation marked a shift towards more efficient mass murder methods by the Nazis.
Explanation:
Zyklon B gas was the product that most connected the I.G. Farben sister company Degussa to the Holocaust. Zyklon B was used in the Auschwitz gas chambers to systematically murder millions of people, including Jews, gypsies, and others deemed 'unsuitable for life,' making it a central element in the genocide.
The decision to implement Zyklon B in the gas chambers marked the shift towards more efficient methods of mass murder by the Nazis, leading to its widespread use across various concentration camps, notably Auschwitz and Majdanek.
Additionally, the deliberate manufacturing of Zyklon B without its warning odorant highlighted the calculated and horrific nature of its use to exterminate victims in the most ruthless manner during the Holocaust.
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