Answer: Creation of a judicial branch
Explanation:
The options to the question are:
a. Creation of a judicial branch
b. Creation of a national bank
c. Creation of the Electoral College
d. Creation of the Monroe Doctrine
One way that the Constitution of the United States expanded the power of the central government is the creation of a judicial branch. The judicial branch is in charge of interpretation and application of law and also settling of legal disputes.
The Monroe Doctrine simply states that with regards to the politics in America, an intervention by external powers will be considered dangerous to America. 
The electoral college are electors who employ the president and the vice president. The creation of national bank isn't a way the U.S constitution expanded the power of the central government.
From the explanation, the answer is "creation of a judicial branch".
 
        
             
        
        
        
I Think It's C. A Man Walked Past The Mill In The Afternoon, And The Mill Caught Fire
        
                    
             
        
        
        
Rome's government was destroyed by an invasion from Carthage and ruled from Alexandria.
Rome's government was taken over by a leader who was popular with the common people.
Reformers made positive changes in the republic that led to a new government.
Roman generals created a military government, and the army ruled by force.
        
                    
             
        
        
        
<span>Two of the major factors were the railroads and the invention of the assembly line. With the finishing of the transcontinental railroad some 30 years earlier, the US had a nation that was linked coast-to-coast and was able to transport goods in a fraction of the time it previously could. With the invention and perfection of assembly line processes, those goods could now be produced in a fraction of the time, as well.</span>