senators wanted to make changes to this part of the charter of the League of Nations. President Wilson didn't want this to occur. as a result, we not only didn't join the League of Nations, we didn't ratify the Versailles Treaty. We ended up signing separate peace treaties with the Central Powers
The first revolution toppled tsar rule and put a provisional government had little support,
This situation make it possible for the Bolsheviks second revolution to bring down the government. When the civil war was over, the Bolsheviks now replaced the tsar and hold the majority of control in the government. They later on replaced the officials that ruled under the tsar with their own, and implemented communist principle to Russian economy.
President Grover Cleveland was responsible.
I believe the answer is A