Question

A person belonging to the left-wing majority group of the Russian Social Democratic Worker's Party was called a _____. Marinsky Menshevik Bolshevik Populist

Answer 1

the answer would be Bolshevik

Answer 2

Those were called Bolsheviks, which literally meant majority in Russian. The members of the liberal minority were called Mensheviks ("minority"). The battle for power between these two fractions played a crucial role in the start of the early Union and the Bolsheviks won out.