The popularity of the nazi party grew in germany because
a) it had been declared illegal following world war i and germans resented the ban.
b) the spanish civil war had shown that communists could successfully take control if not monitored.
c) italian leader benito mussolini had sent troops to germany to train the nazis and instruct hitler on how to take power.
d) people were in despair following the loss of the war, the great depression, and the ineffectiveness of the weimar government.

D) People were in despair following the loss of the war, the Great Depression, and the ineffectiveness of the Weimar government.

Explanation:

The Germans were not prepared for the defeat of WWI. The loss of the war hurt the German national pride. Many started to claim that Germany lost the war because many such as leftwing politicians and jews stabbed Germany in the back. The Weimar Republic, a new government tried to establish a democratic course but the regime was not able to handle the depressed economy and the public disorder the war caused. The German population was bitter and after the Treaty of Versailles, the German Worker’s Party started to gather public attention by encouraging national pride, militarism, and commitment. Hitler, the leader of the party claimed that Germans were racially pure and condemned the Jews for causing all of the problems that Germany had during that period.

battle of saint-mihiel, (12–16 september 1918), allied victory and the first u.s.-led offensive in world war i. the allied attack against the saint-mihiel salient provided the americans with an opportunity to use their forces on the western front en masse.

explanation: