Which significant outcome did the Russian Revolution of 1917 produce?

The Russian Revolution of 1917 had a profound impact on Russia and world history, leading to the establishment of a communist government and the country's withdrawal from World War I. The revolution unfolded in two main phases: the February Revolution, which resulted in the abdication of Tsar Nicholas II and the end of the Romanov dynasty's rule, and the October Revolution, which brought the Bolsheviks, led by Vladimir Lenin, to power.

Once in power, the Bolsheviks signed the Treaty of Brest-Litovsk with Germany in early 1918, formally withdrawing Russia from World War I. This treaty marked a significant shift in power dynamics and contributed to the development of communist ideology as the Bolsheviks aimed to consolidate their power and promote a proletarian revolution.

The other options do not accurately reflect the outcomes of the revolution. The establishment of a monarchy did not occur, as the Tsar was removed from power. Instead of continuing under imperial rule, Russia transitioned to a different form of governance entirely. Additionally, there was no peaceful resolution with the German Empire; instead, the treaty was somewhat contentious and ultimately led to further conflict in the region.