The correct answer is option 4, Lenin. In 1917, Vladimir Lenin presented `The April Theses` to the Russian people. `The April Theses` was a set of ten directives that outlined Lenin`s plan for the Bolshevik Party and the revolution in Russia.

Lenin`s `The April Theses` was presented in Petrograd (now known as St. Petersburg) on April 4, 1917. It called for the overthrow of the Provisional Government, the end of the war, and the establishment of Soviet power. The theses also emphasized the importance of the working class and the need for a socialist revolution.

While all the options listed were prominent figures in Russian history, only Lenin presented `The April Theses` in 1917. Stalin, Trotsky, and Bukharin were important figures in the Bolshevik Party and the Soviet Union, but they did not present `The April Theses`.

In summary, option 4, Lenin, was the correct answer as he presented `The April Theses` to the Russian people in 1917.