The correct answer is D.
Hitler always considered Jews as a race, never as a religious community, and that they meant a threat to the pure German Aryan race, whose supremacy had to be imposed over low races that were contaminating it.
During his first years in politics, Hitler defended the enactment of laws that discriminated Jews as second class citizens, with the ultimate goal of removing them altogether from Germany.
When he was already the leader of Nazi Germany and WWII had started he started to developed the so-called Final Solution to the Jewish Question that finally led to the Holocaust, the massive extermination of mostly Jewish people but also other human groups that he considered could spoil the Aryan race such as disabled, homosexuals, communists, etc. The extermination was conducted in an industrial manner, by the deportation of people to death and concentration camps and the usage of gas chambers and crematories.
