The Opium Wars were a series of wars between Chine and Great Britain. It started when Chine started to refuse the shipments of Opium. The war was a fail for China, this means that answer A, C, and D are wrong. The only answer left is B. Please contact me if you want more information on the opium war.
Hope this Helps! :)
Answer:
(Because they were forced to pay a tax on shipped goods and this angered them because the tax rose more and more) -Raymond :3
Explanation:
The united states where worried that japan would give military support to the european countrys
