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': 'Ramesh presented with bronchodilatation, increased temperature, constipation and tachycardia. Probable diagnosis is poisoning with: AIIMS 10 \nSelect and explain. \nA. Mushroom, B. Atropine, C. Arsenic, D. Organophosphorus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Atropine', 'role': 'assistant'}]