Multiple choice general knowledge history

One of the ways by which Hitler killed the Jews

  1. By using Gas Chambers

  2. By using Laughing gas

  3. By using tear gas

  4. By using LPG

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A Correct answer
Explanation

The Nazis used gas chambers as a primary method to systematically murder Jews during the Holocaust. These chambers used poisonous gas like Zyklon B or carbon monoxide. Laughing gas, tear gas, and LPG were not used for this purpose.