The mutual obligations that emerged under feudalism was that people needed protection for themselves, their homes and their lands. They also wanted a decentralized political and economic structure evolved.
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Differing from the Umayyad caliphs, the Abbasid rulers paid more attention to administration rather than expansion of the empire. Whereas the Umayyad caliphs were more concerned about expanding their empire and being powerful.
Letter B is wrong I took the unit test on E-2020 the correct answer to the question is A.
Answer:
I don't want to do all the work for you, but I will provide a couple of links that will help you tremendously with this:)
Explanation:
https://en.wikipedia.org/wiki/American_Civil_War
https://www.history.com/topics/american-civil-war/american-civil-war-history
https://www.britannica.com/event/American-Civil-War
https://www.battlefields.org