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': 'The most common death by suicide is by : \nSelect and explain. \nA. Phenobarbitone, B. Insecticide, C. Hanging, D. Suicidal cut throat', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Insectiside', 'role': 'assistant'}]