The correct answer to this open question is the following.
Evaluate the success of the Constitutional principles of separation of powers and checks and balances in addressing concerns about the government under the Articles of Confederation
In reality, it was successful because the Articles of Confederation had many deficiencies. For instance, under the Articles of Confederation, the central government was weak. The states were the ones that were sovereign and independent and has the advantage that they could collect taxes. Congress couldn't. So if the government needed money, it was through the states.
So when the delegates met at the Constitutional Congress of 1787 in the city of Philadelphia, Pennsylvania, they debated the best form of government for the United States and decided to have a division of powers under the system of checks and balances in which none of the branches had more power over the others.
