Answer:
The Middle Woodland period
Explanation:
The Middle Woodland period (100 B.C. to 200 A.D.) was the first era of widespread mound construction in Mississippi. Middle Woodland peoples were primarily hunters and gatherers who occupied semipermanent or permanent settlements. Some mounds of this period were built to bury important members of local tribal groups.
I believe it would be refuse but i could be wrong. Hope this helps!
I think its D, they would be able to ship livestock via railroad
The point was to decide how america was going to be governed
