Which of the following best describes an effect of the Russian Revolution?

Question 4 options:

Russia influenced Britain, France, and the United States to adopt socialism

Joseph Stalin and Vladimir Lenin were executed by Czar Nicholas II

The Bolsheviks won the civil war and transformed Russia into a communist nation

Russia quickly industrialized and helped the Allies win World War I

Well, 1 and 2 are obviously wrong!

Which of the other two makes sense and is correct?