This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Toxicology - 1, Subject name: Forensic Medicine
[{'content': 'Among Bipyridyl herbicides, 1) Diquat is only half as toxic as paraquat 2) Diquat doesnot produce pulmonary toxicity \nSelect and explain. \nA. Both are true, B. Both are false, C. 1 is true, 2 is false, D. 2 is true, 1 is false', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Diquat is only half as toxic as paraquat Diquat doesnot produce pulmonary toxicity', 'role': 'assistant'}]