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

A. Great Britain would not stop its merchants from selling opium in china

B. China cut off all trade relations with great Britain and other European states

C. China refused to allow Britain merchants and missionaries to enter the country

D. Great Britain attacked several islands china claimed were parts of its territory

Option: C. China refused to allow Britain merchants and missionaries to enter the country.

Explanation:

The political damage between Great Britain and China in the mid 19th century began when the Qing Dynasty decides to put a restriction on the selling of the illegal trafficking of opium. During the 19th century, Chinese products like porcelain, tea, and silks extremely popular and considered to be profitable for the British Merchants. The British could only pay silver in return for these goods because the Chinese did not want British goods. Paying silver was becoming expensive, so, Britishers introduced Opium in China. Extensive illegal import of Indian Opium brought hostility between the two and led to the Opium wars in China.