Which of the Following Is Correct About the History of Opium

Which of the following is correct about the history of opium?

A) Opium use has only a minor historical connection with China.
B) Opium use began to increase when smoking tobacco was introduced to China.
C) The British wanted a favorable trade balance with China.
D) The Chinese had virtually no interest European goods.
E) All of the above are correct statements about the history of opium.