Political parties appeared in the United States shortly after the Constitution was adopted because A) Washington disliked Jefferson.
B) Great Britain had a two-party system.
C) The Constitution provides for a two-party system.
D) differences arose over political and economic issues.

the answer is D

Explanation:

D) differences arose over political and economic issues.

they had many gains 1 one freedom for slaves the major cause of the civil war is that the   north wanted freedom for slaves but the south didn; t creaitng the civil war

another gain they have is poltiical influence

poltiical influence is a big thing everywhere even now peoplle are always trying to get the head up in poltics thats what they did by giving the republicians a good name for freeing slaves