The answer is not b but
D. The outbreak of the Russian Revolution in 1917.
I hope I could help ^^.
A the Zimmerman note
Source- trust me
Answer:
Great Depression
Explanation:
There is a very good argument to be made for the notion that the Great Depression had a greater effect on federalism than did the Civil War.
The Great Depression of the 1930s brought economic hardships the nation had never witnessed before. ... In contrast to dual federalism, it erodes the jurisdictional boundaries between the states and national government, leading to a blending of layers as in a marble cake.
Answer: c
Explanation:
The event was organized by the NAACP, church, and community leaders to protest violence directed towards African Americans, such as recent lynchings in Waco and Memphis. The parade was precipitated by the East St. Louis riots in May and July 1917 where at least 40 black people were killed by white mobs, in part touched off by a labor dispute where blacks were used for strike breaking