Which is the best description of the purpose and motivation of groups like the ku klux klan and the white league during the reconstruction era? a) groups like the ku klux klan and the white league worked to the newly freed slaves adjust to life after slavery. b) groups like the ku klux klan and the white league worked to provide financial assistance for retired confederate veterans and their families. c) groups like the ku klux klan and the white league worked to restore white supremacy in the south through threats and violence against free blacks and white republicans. d) groups like the ku klux klan and the white league worked to ensure that white southerners cooperated with the reconstruction policies put into effect by the federal government.