Answer:
it's b because propaganda means to just use the media to promote a biased political cause
Jews were systematically oppressed long before the Holocaust. At first, they were isolated from the other Germans and dehumanized (forced to wear the Star of David to signify they were Jewish); from there they were segregated. They were then encouraged to leave Germany and other countries under German rule as they started to expand (their home land). Then, they were forced into ghettos. Finally, they were transported into death camps and concentration camps.
The new approach was pushing native Indians into reserves.
The reservations often very visible in the western territories were part of the treaty arrangements that were intended to end constant hostility between the native Indians and settlers pushing westwards.