B: He promised a return to glory
After the great war, Germany had been abused by the resulting treatises and thus paved way for the desperate need to reconquer the German territories, restore the German economy, and rebuild the nation. Hitler promised all this with the target of the blame being the Jewish people, and that the road to restore Germany to its formal glory, the Roman Empire as claimed Germany a heir too, the solution was a fascist ruler, and national socialism.