Later, during the subsequent Nuremberg Trials, Nazi cabinet members would be faced with evidence that they knew about the Final Solution. From where would the evidence of their knowledge MOST likely come from?

communications between Hitler and the officials detailing the gas chambers

the protocol ordered by Eichmann and Heydrich of the Wannsee Conference

personal letters and diaries that each kept of the acts they committed during the war

notes that had been recorded by Himmler during the Munich Agreement