How did the Boxer Rebellion lead to the decline of dynastic rule in China?

A) The uprising led to increased nationalism and conflict, which weakened the government.
B) The peasant uprising led to a civil war, which allowed westernized countries to gain control.
C) The Boxers began to sell opium to the people in China, which led to conflict in the government.
D) China began to use imperialism to overpower European nations.