Final answer:
Shays's Rebellion demonstrated the weaknesses in the national government under the Articles of Confederation, leading to the belief that reform was necessary. This subsequently inspired the Constitutional Convention and the creation of a new, stronger federal government.
Step-by-step explanation:
One effect of Shays's Rebellion was that it contributed to a growing belief that the national government needed reform (option D). At that time, the United States was governed by the Articles of Confederation, which had many weaknesses. The rebellion showed that the government lacked the power to effectively deal with such a crisis, as it could not quickly raise an army. In the aftermath of Shays's Rebellion, the Articles of Confederation were revised to provide a stronger federal government that would be able to address such uprisings and make sure the country remains stable and secure. This ultimately led to the Constitutional Convention and the creation of a new constitution to replace the Articles of Confederation.
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