Question

______ exited world war i because it was fighting a revolution against the tsar and a civil war.
a russia
b germany
c america

Explanation:

During World War I, Russia was undergoing the Russian Revolution (including the February and October Revolutions) and a civil war, which led to its exit from World War I. Germany continued fighting until the end, and America entered the war later and continued to participate. So the country that exited WWI due to a revolution and civil war is Russia.

Answer:

A. Russia