I believe the answer is A but i could be wrong, during the Civil war it made it easier for them to speak and talk to each other during that time sending goods and messages across the united states.
Hope this helps.
The constitutional principle that was the main focus of the north south conflicts that led to the civil war was the right to own property, since many people in the South felt that slaves were included in terms of "property" that could not be taken away.
Cuneiform was the written system of the c)Sumerians. Cuneiform is one of the earliest systems of writing and is generally "written" in a wedge-shaped style. It took many years for people to translate these texts and it is known that these were lists people kept to keep track of their domesticated animals in their agricultural territory.