Question

2 radical revolutionaries were known as
bolsheviks.
mladorossi.
socialists.
fascists.

Explanation:

Radical revolutionaries in the context of the Russian Revolution were known as Bolsheviks. The Bolsheviks, led by Vladimir Lenin, were a faction of the Marxist Russian Social Democratic Labour Party. They were committed to a radical overthrow of the existing order (in this case, the Tsarist regime and later the Provisional Government) to establish a socialist state.

Mladorossi is not a term associated with radical revolutionaries in a major historical revolutionary context. Socialists is a broader ideological group, and while Bolsheviks were socialists, the more specific term for the radical revolutionary group in the Russian context is Bolsheviks. Fascists are associated with a different, far - right, authoritarian ideology that is not related to the radical revolutionary socialism of the Bolsheviks.

Answer:

A. Bolsheviks.