Answer: National community i think
Explanation:
He believed in it. That is why after the overthrow of the Russian tsar. He implemented marxist ideology into Russian politics and government.
It would be "party leadership" that is the most common party system in the world today, although it should be noted that there are still many unitary and dictatorship-based governments.
Om stuck on the same question i want to say that it's A, C, D, and maybe E. :)