Answer:
I'm strayan so like dont take what I SAY legit but reckon its B :)
In 1924 FIDE was established
Roosevelt and Churchilll were on the other side of the war - so they couldn't have been in the US.
The head of the SS was Himmler.
Second question: men and women were separated and children were put separately, also the healthy were separated from the sick so the correct answer is: race!