Answer:
By the passage of the National Origins Act of 1924
Explanation:
The United States government changed immigration restrictions during the !920s by the passage of the National Origins Acts in 1924 which introduced an immigration quota system of 2% of each nationality represented in the 1890 census.
Correct answer is B. I just took the test and got it correct on e2020
Socialism however this later failed too i believe... hope i helped
C would be the correct answer.
Funny I don’t know is this a serious question