I'm stuck on this problem i need is it a,b,c or d

Joseph Stalin's Rise to Power. In 1912, Lenin, then in exile in Switzerland, appointed Joseph Stalin to serve on the first Central Committee of the Bolshevik Party. Three years later, in November 1917, the Bolsheviks seized power in Russia. The Soviet Union was founded in 1922, with Lenin as its first leader.

 US and other Coalition forces entered Iraq and took the city of Basra