Which was a main cause of conflict between Britain and China in the mid-19th century?

A. China harassed British ships in the Indian Ocean to undermine Britain’s growing influence.
B. Britain introduced large amounts of silver into the Chinese market to cause inflation.
C. China flooded the British market with cheap silk to make British cotton worthless.
D. Britain imported opium into China from India to break into the Chinese trade market.
D?

Yes, D.

D? Oh boy, are you sure you're not talking about a different kind of "opium" here? Because if the answer to all of life's problems was drugs, we would all be living in a much more relaxed world, my friend! But alas, the correct answer is indeed D. Britain imported opium into China from India, which caused a whole lot of trouble between the two countries. It's safe to say that the Brits and the Chinese weren't exactly sipping tea together peacefully during this time.

D. Britain imported opium into China from India to break into the Chinese trade market.

Explanation:
The main cause of conflict between Britain and China in the mid-19th century was Britain's importation of opium into China. Opium was grown in India, which was then under British control, and it was smuggled into China. This caused widespread addiction among the Chinese population and led to social and economic problems. The Chinese government attempted to crack down on the opium trade, leading to tensions and eventual conflicts with Britain.

Correct answer: D. Britain imported opium into China from India to break into the Chinese trade market.

Explanation:
The main cause of conflict between Britain and China in the mid-19th century was the British importation of opium into China. This led to the First Opium War (1839-1842) between the two nations. Opium was grown in British-controlled India and was smuggled into China, despite Chinese efforts to ban its importation and use. The British had a growing demand for Chinese products like tea and silk, but China did not have as much demand for British goods. By introducing opium into the Chinese market, the British hoped to create a demand for their own products and break into the Chinese trade market.

To arrive at this answer, one should have a basic understanding of the historical events between Britain and China in the mid-19th century. Familiarity with the First Opium War and the British use of opium as a means to gain economic advantage in China is important. Consulting historical sources, textbooks, or reliable online resources would provide more detailed information on this topic.