The Concert of Europe was a system of dispute resolution adopted by the major conservative powers of Europe to maintain their power, oppose revolutionary movements, weaken the forces of nationalism, and uphold the balance of power.
The American attitude shifted in favor of rights for Native Americans. This is based on "Polls showed that Americans believed in rights for Native Americans". Why it's not A is because it wasn't the polling that contributed to the act, but what the polls showed which is C.
Answer: The First Opium War ended with the Treaty of Nanking, which is referred to by the Chinese as one of the unequal treaties.
Explanation:
-communism spread
-millions died because of conflict and starvation
-people lost their freedoms and were uneducated.
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