The correct answer is TRUE.
The Bolsheviks and the Mensheviks were the two factions that emerged in 1903 inside the Russian socialist movement, whose principal objective was to abolish the czarist state. The division started after an argument between Martov and Lenin, and each of them together with their supporters ended up constituting the Menshevik and the Bolshevik factions respectively.
Both factions worked for the emergence of a proletarian revolution but Mensheviks were more moderate and, for example, trusted in the existence of a positive liberal opposition. Bolsheviks, in turn, aimed to break completely with all the structures from the former system.