Answer:
Bill of Rights
Step-by-step explanation:
The weakness of the Article of Confederation was exposed in Shay's rebellion and Congress's inability to take appropriate steps. Federalist wants to revise the Article of Confederation but opposition was well aware about the threat a strong federal government can pose and, therefore, Bill of Rights was important which was a way to convince States about the new Constitution by ensuring civil liberties to citizens and limit the power of federal government.