What event formally ended the American Revolution? A. the surrender at Yorktown
B. Battle of Saratoga
C. Declaration of Independence
D. Treaty of Paris 1783

C

Explanation:

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the right answer is the end of world war ii

after the end of a global wwii all the nations involved, in an attempt to create an organization to maintain world peace. this agreement would work settling international disputes via negotiation and arbitration instead of leading the issues escalate to another war.