What was the opium war? How did it end?

The Opium Wars were two wars in the mid-19th century involving Great Qing and the British Government and concerned their imposition of trade of opium upon China.

The resulting concession of Hong Kong compromised China's territorial sovereignty.

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depends on the age of the teen, many believe by the age of 16 a person should know the strong difference between right and wrong along with the difference between risky and immediate death. swimming with sharks might be dangerous but swimming with sharks while bloody meat is attached to you is just insane. even more if you have no idea what you're doing. however, no matter the age, as long as the person is skilled enough and has the mental and physical capacity to control their actions doing whatever sport they put their mind to is all that matters.

d. china

good luck

d is the best choice