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': 'A young female presented with consumption of some substance in the emergency depament. Greenish blue froth was seen coming out of her nostrils and oral cavity. The poisoning is most likely due to which of the following \nSelect and explain. \nA. Arsenic poisoning, B. Copper poisoning, C. Mercury poisoning, D. Lead poisoning', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. b. Copper poisoning', 'role': 'assistant'}]