Answer:
The answer is option C.
the communist party.
Explanation: Communism is an idea where the nation is the owner of everything. There is no private property allowed under a communist run nation and the income of the citizen is determined by the nation. But the nation is run by the communist party. The government is formed by communist party. So the center of power is held by the communist party.As a result the communist party has the decision making power in a communist run nation.