What was the chief goal of the meeting congress of vienna ?

The chief goal of the Congress of Vienna was to create a lasting peace by establishing a balance of power and protecting the system of monarchy.

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china unilaterally claims the entire south china sea as sovereign territory, then builds artificial islands to bolster its claim. it suddenly activates an air defense identification zone over the east china sea, and threatens to down any aircraft that does not report its position. it builds roads into indian territory, then redraws the maps to show that it is actually chinese territory. the people's republic under president xi jinping is quickly becoming the bully of asia.

i think the answer is b.