The correct answer is B) Otto von Bismarck.
The Social Democratic Party, formed as a political faction in the late 1800s in Russia, took its ideology from Otto von Bismarck.
Otto von Bismarck (1815-1898) was the Chancellor of the German Empire, whose ideology influenced the creation of the Social Democratic Party in Russia. The Party was founded in Minsk, Belarus, 1889, with the name of the Russian Social Democratic Worker's Party. From this party, two divisions were born: the Bolsheviks and the Mensheviks.