Geographic, meaning confederate is the correct answer. Presidential has to do with the powers in charge . Meanwhile, a confederate government, along with federal and unitary describe the contribution of powers geographically.
History, for one. Communism is mostly attributed to Karl Marx, whom believed that workers are abused by the upper class. Communism is mainly the belief that one "takes as he needs" rather than own more than what is needed. This idea has failed in practice as Joseph Stalin abused the system.
One is a part of the civil war
