I think the difference is caused by a person or group actually going through with genocide versus an attempt at it, but that's just my best guess?
Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!
tinyurl.com/wpazsebu
I believe the answer is b because there were often wars between African clans and the best way to get rid of the prisoners and get things they needed at the same time was to trade them.
I don't really understand the wording of your question but, I can give you it in a nutshell:
The convention was called to address the weaknesses in the Articles of Confederation.
Cultural, economic, religious and ethnic.
All nations have politics, which is a way of governing a sovereign territory. It doesn't necessarily exclusively identify a nation or make it special. Same goes for intellectual. It doesn't have a place on national identity.