Which of the following led to conflict between britian and china in the mid 19th century

Opium War that was fought between China and Great Britain.  This was due to the growing problem caused by the Opium trade by the British.  This alarmed the Chinese and they destroyed some of the opium being sold by the British.  This led to war in which China was defeated. 

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give brainliest if you please

first one the food administration

the answer is "by providing data about careers and annual mean wages"