The best choice is:
2 With many newly freed men and new politicians, it was unclear how the South would run state governments.
After the Civil War, the South faced significant economic and social upheaval. The end of slavery and the inclusion of newly freed African Americans into the political sphere created uncertainty and challenges in governance. There was a lack of experience and infrastructure for managing state governments, leading to political instability and tensions as different groups vied for power and representation. This uncertainty significantly contributed to the political problems the South experienced during the Reconstruction era.