The correct option is A December, 1922
In December 1922, the Bolsheviks created the Union of Soviet Socialist Republics (USSR) from the Russian Empire. The formation of the Soviet Union was combined with unpopular policies. The Bolsheviks forced the local governments of non-Russian nationalities to follow some strict policies. One such policy was the harsh discouragement of nomadism, which diluted the efforts to win over different nationalities.