Answer:
There were many causes of the Civil War. Some were The Northwest Ordinance, The Compromise of 1850, Kansas VS Nebraska (Bleeding Kansas), The Missouri Compromise, ect. The Civil War was mostly caused because of slavery. The north were against slavery, the south thought they should have Popular Sovereignty (the people chose if they wanted slaves).
I think you forgot to add the options but based on my research the correct answer is "geographic conditions there." The differences in the economic development of the mid-Atlantic, New England, and Southern colonies can BEST be attributed to the geographic conditions there. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.
C.
Collusion is legal in the United States, but cartels are not.