Question

Which of the following damaged the political relationship between Great Britain and China during the mid-19th century?

Answer 1

It was primarily that "C. Great Britain would not stop its merchants from selling opium in China," that damaged the political relationship between Great Britain and China during the mid-19th century, since the Chines saw this has being detrimental to Chinese society. 

Answer 2

C. Great Britain would not stop its merchants from selling opium in China is correct.