Answer:
The event that gave greater urgency to the Constitutional Convention held in Philadelphia was:
a) Shays' Rebellion
Explanation:
Shays' Rebellion was a significant uprising in Massachusetts in 1786-1787, led by Daniel Shays, a Revolutionary War veteran. The rebellion was primarily driven by economic grievances and frustrations among farmers who were facing foreclosures and high taxes. The rebellion highlighted the weaknesses of the Articles of Confederation, the existing framework of government in the United States, in dealing with domestic unrest and enforcing laws. As a result, it increased the urgency among many political leaders to address the shortcomings of the Articles and led to the calling of the Constitutional Convention in Philadelphia in 1787, where delegates worked to draft a new constitution that would establish a stronger central government.