The correct answer is Shays’ Rebellion.
Shay’s Rebellion convinced American leaders to change the weak national government created by the Articles of Confederation.
When the central government could not control the movement, it was the Shays’ Rebellion that made it clear the weakness of the Articles of the Confederation. Then, the firsts ideas of a federalist started to be considered. Shays’ Rebellion was a violent movement in which the rebels attacked public property in Massachusetts. The incident led to a war demanding better economic conditions. Daniel Shay was the leader of the insurrection.
The other options of the question were, a) the Northwest Ordinance, b) the ideas of Patrick Henry, and d) the Navigation Acts.