Answer:
I think Jackson was right to initiate the spoils system because by completely removing officials from time to time prevented any one party from maintaining a stranglehold on government.
The three things that brought about the fall of Rome when they all hit at once are:
1. multiple civil wars
2. economic collapse due to inflation
3. repeated invasions from all over
Rome used to be the most powerful country that ruled most of the world, but over time, its strength started to wane. In the end, due to many reasons, such as these above, it was forgotten and gave way to new countries being created.
I know that it was cheap land so it would be A or D to my best judgement. Are you good at math?
Less trade, more criticism and war.