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': '60 yrs old man presents in OPD with history of opium addiction for the last 20 yrs. He has given up opium from 2 days. Withdrawal symptoms will include : \nSelect and explain. \nA. Drowsiness, B. Constricted pupil, C. Rhinorhea, D. Led Blood pressure', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Rhinorrhea', 'role': 'assistant'}]