I believe the answer is they had important rail and water routes ^^
Hammurabi's well-disciplined army of Foot soldiers used axes, spears, and copper or bronze daggers to divide and conquer opponents one by one.
To gain the southerners' support, Douglas proposed creating two territories in the area–Kansas and Nebraska and repealing the Missouri Compromise line. The question of whether the territories would be slave or free would be left to the settlers under Douglas's principle of popular sovereignty
Answer:
The first regions lived in the north and another on the coast.
I would go with D because many writing systems were similar in a way, because people would travel and bring there culture everywhere else.