Question

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

A. China refused to allow British merchants and missionaries to enter the country.
B. China cut off all trade relations with Great Britain and other European states.
C. Great Britain would not stop its merchants from selling opium in China.
D. Great Britain attacked several islands China claimed were part of its territory.

Answer 1

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

Answer 2

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.