Final answer:
Regional issues tested the nation's commitment to reconstruction by testing the resolve to address local disparities.
Step-by-step explanation:
Regional issues tested the nation's commitment to reconstruction by testing the resolve to address local disparities. Different regions in the United States had varying levels of support for Reconstruction, and this led to challenges in implementing policies that would address the inequalities and disparities among the states. For example, the South had a strong resistance to the changes brought about by Reconstruction, and this tested the resolve of political leaders and the nation as a whole to address and overcome these regional issues.