Answer:
1 and 3.
Step-by-step explanation:
Economic depression and Germany's defeat in World War I, are the right answers.
Nazi propaganda was apprehended at the time when workers lost their jobs due to bank failure and shut down of companies and the middle classes were frightened with poverty. This was the time of the Great Economic Depression in which Nazism became popular in Germany. Moreover, the humiliating Treaty of Versailles created a call to retaliate of the loss of the First World War and restore the old fame of Germany.