The correct answer would be option C, Matrix.
In a university setting, it is common for a professor to report to an academic supervisor in his/her area of educational expertise and to a supervisor overseeing a particular degree such as baccalaureate or masters. This illustrates the Matrix Structure. 
Explanation:
A matrix is a structure in which something develops. This something could be culture, social, political, educational, official environment. 
So a system in which a professor reports to a supervisor regarding his or her expertise area, and that supervisor further reports to the person who is seeing the particular degree overall, then this system is fostering positive aspects in educational system. This creates a matrix structure within the colleges and universities. 
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Answer:
In the United States, the two major layers of government are at the state and national levels. This system, where more than one layer of government has jurisdiction over the same territory, is called federalism. Although it seems natural to US citizens that government is divided into multiple layers, in fact, there are only 15 federal republics in the world.
In the United States, the federalist system emerged because the states evolved from separate colonies, which had diverse populations and different needs. The Framers of the Constitution envisioned that state governments, not the national government, would be the main unit of government for citizens on a day-to-day basis.
Explanation:
 
        
                    
             
        
        
        
If i was there mt.Vesuvius would be scary thing, u have no where to go i think D is the correct answer