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: Anaesthesia
[{'content': 'Epidural narcotic is preferred over epidural LA because it causes \nSelect and explain. \nA. Less respiratory depression, B. Less dose is required, C. No motor paralysis, D. No retention of urine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. No motor paralysis', 'role': 'assistant'}]