Which of the following statements best interprets why the Canton System ended?

A: Europeans’ efforts to avoid Canton System regulations led them to smuggle illegal drugs into China, resulting in war.
B: Europeans refused to see themselves as tributes to the Qing Dynasty.
C: The Qing Dynasty decided that trading with Europeans was not beneficial.
D: Very few countries wanted to use the Canton System.

C: The Qing Dynasty decided that trading with Europeans was not beneficial.