B = 3! Because there is 3 lines in total
People were encouraged to explore and settle in new lands because C isnt true , A and B are the same and they didnt develop new products to fight diseases nor did they carefully trade.
The Nazis were able to control people from 1933 to 1939 because that was the begin of the events leading up until the Holocaust. Where they had tried to get rid of all the Jewish people in Germany.
I am not 100% sure but I believe this is why ^-^
