On the Continent, Except for Russia, as Marxist or Social

On the continent, except for Russia, as Marxist or Social Democratic parties became larger and larger, they generally

A) became more and more revolutionary.
B) maintained the same positions they had held earlier.
C) turned less revolutionary, and increasingly worked through the parliamentary process to obtain practical benefits for the workers.
D) turned reactionary, allying on occasion with the right to obtain benefits from the state.