Civil rights activists challenged southern voting laws because they conflicted with a) the fifteenth amendment. b)the civil rights act of 1964. c)the emancipation proclamation. d)the declaration of independence

Which answer best describes the u.s. national road? it ran from atlanta to baltimore and followed the railroad. it ran from new york to chicago and was made from wooden planks. it ran from massachusetts to ohio and ran parallel to the canal system. it ran from maryland to illinois and was made using macadam construction.