Which diagram correctly arranges system of government in order from least powerful to most powerful

The correct answer is C). Anarchy, Constitutional, Authoritarian.

When there is Anarchy in a system, it means that there is no control at all. It is the weakest power of government because it is assumed that the people do what they want to do and they don't have a government regulation.  

Constitutional is a stronger system of government that it’s limited by the Constitution and is a form of democratic system. Here, no branch of government has absolute power. The laws that are part of the Constitution regulates the social interactions.

An Authoritarian system is like a dictatorship government where the ruler has unlimited power. There are no other powers that balance the total exercise of the power of a Dictator.

after the civil war, and with the termination of slavery, the south was faced with a big problem; what was supposed to happen and how they were supposed to deal with the freedom and the rights that black people and freed slaves had gained as a result of the north defeating the south and forcing the end of slavery. first, most, if not all, of the workforce of the south came from slaves and they did not have an option to replace the loss of said workforce. second, particularly in the south, people were convinced that black people were lesser, less intelligent, less capable and less smart than whites. this posed a huge problem for them. also, southerners were faced with another issue; freed slaves now had a say in how their lives would be lived and the right to politically choose the way they would be governed. people in the south did not want to accept this, none of this and this opposition and the conflicts that arose from it, not to mention the afereffects of the war, forced the congress of the time to enact and enforce the reconstruction plans that had been proposed by president andrew johnson.

the graph shows the spread of railways in the 1800s.

based on the graph, the conclusion that can be drawn about germany is answer d)   by 1880, germany had more rail lines than great britain and russia.