Help me out this is history I will give you 100 points

Answer:
C. Colonial grievances.
Explanation:
Checks and balances were not included until the three branches of government were establish and we didn't even have a government in 1776 well a poor constitution. Bill of Rights was in 1791 in the Constitution by James Madison. Federalist Papers were a series of essays and documents who wrote why they support federalism or a strong, federal government. Therefore, C is correct.