Which of the following most likely prompted the complaint voiced in the passage?

(A) British sale of opium in China (B) British exports of tobacco to China (C) British introduction of gunpowder to China (D) British encouragement of heroin use to ChinaExplanation: (A) This question calls for contextualization and knowledge related to the stimulus material without being alluded to it directly. The “poisonous drug” mentioned by Lin Zexu is meant literally, so C is wrong. Tobacco and heroin are drugs, but not items involved in the economic pressure placed on the Chinese by Britain at this time.