There is no better option in this question
This is because the main reason that led to the rise of nativism in the 1920's was the increase of immigrants into the USA. The most feared of these immigrants were the German.
The long march was a tactic of retreat into the mountains so that they could survive because they were facing elimination.
Answer:
The main concern was how to strike the balance between the powers of the federal government and those of the states. Another major concern was that of representation. How the states and their populations were going to be represented in order to prevent neglecting the interests of smaller states? The Great Compromise was reached; a two-chamber Congress with a House of Representatives with members who would be elected according to the population size in states, and the Senate with equal representation for all states.
Explanation:
Class struggle and political revolution is necessary for socialism to emerge. They think that everyone will just adopt it, without struggle or a fight, if it's represented convincingly.