The statement that best explains the impact of the Treaty of Brest-Litovsk on Russia is:
Although Russia gave up a lot of land, the Russian people were relieved to exit the war.
The Treaty of Brest-Litovsk, signed in March 1918 between the Bolshevik government and the Central Powers, resulted in significant territorial losses for Russia. However, many in Russia were relieved that the treaty allowed the country to exit World War I, as the war had caused immense suffering and loss of life. This desire for peace among the Russian populace was a key factor in the Bolsheviks' consolidation of power.