This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
[{'content': 'Death caused in suicide by household things in Japan is due to the production of: AI 12 \nSelect and explain. \nA. Acidic solution, B. H2S, C. HCN gas, D. CO', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. H2S', 'role': 'assistant'}]