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 farmer presented with confusion, increased salivation, fasiculations, miosis, tachycardia and hypeension. Poison that can cause these manifestations: FMGE 10; AIIMS 12; KCET 13; PGI 14; JIPMER 14 \nSelect and explain. \nA. Opium, B. OPC, C. Dhatura, D. Arsenic', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. OPC', 'role': 'assistant'}]