This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Poisoning, Subject name: Forensic Medicine
[{'content': 'The smell of bitter almonds is seen in poisoning with \nSelect and explain. \nA. Phosphorus, B. Hydrocyanic acid, C. Nitric acid, D. Oxalic acid', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cyanide sometimes is described as having a "bitter almond" smell Garlic odor: Thallium Organophosphate Toxicity Arsenic Poisoning Dimethyl Sulfoxide Sulfur Mustard Phosphite Ref: Krishan Vij textbook of forensic medicine, 5th edition pg : 554', 'role': 'assistant'}]