Which of the Following Contributed to Hitler's Rise to Power

Which of the following contributed to Hitler's rise to power?

A) his positioning himself as a leader who worked hard behind doors for the benefit of the people, rarely appearing before public gatherings
B) his building trust with the German people by his openness with them and refusal to engage in any sort of censorship
C) his diplomatic efforts and adherence to the Versailles Treaty, which helped transform Germany into the strongest industrial power at the time
D) his use of showmanship and organization of a police state employing tyranny, terrorism, and propaganda to impose absolute control
E) his embrace of communism as the heart of the Nazi ideology and his strong alliances with other world leaders since after the First World War