Which of the following best explains how economic imperialism affected China during the mid-19th century?

A. China's territory was divided into zones that were economically
dominated by specific European powers.
B. Chinese people were forced to purchase all goods from Europeans
rather than Chinese merchants.
C. China's emperor was forced to give up political power to a leader
elected by Europeans in China.
D. China was required to pay European militaries huge amounts of
money to guard its borders.