Which of the following explains why some people use 1918 as the starting date of the Russian Civil War?(1 point)%0D%0AResponses%0D%0A%0D%0AThe last tsar of Russia stepped down, causing a new government to form and the Bolsheviks to begin to take over the country.%0D%0AThe last tsar of Russia stepped down, causing a new government to form and the Bolsheviks to begin to take over the country.%0D%0A%0D%0AThe White Army successfully conquered Ukraine, showing how powerful they were as a counter force to the Red Army.%0D%0AThe White Army successfully conquered Ukraine, showing how powerful they were as a counter force to the Red Army.%0D%0A%0D%0AIt was the year that the Russians got out of World War I with the Treaty of Brest-Litovsk, so they could focus their attention elsewhere.%0D%0AIt was the year that the Russians got out of World War I with the Treaty of Brest-Litovsk, so they could focus their attention elsewhere.%0D%0A%0D%0ALenin decided to disband the Constituent Assembly in 1918, which angered people because the Bolsheviks were becoming more controlling.

The last tsar of Russia stepped down, causing a new government to form and the Bolsheviks to begin to take over the country.