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: Medicine
[{'content': 'Trophic ulcers are seen in all, Except: \nSelect and explain. \nA. Leprosy, B. Syringomyelia, C. Polio, D. All of the above (seen in all)', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer is C (Polio): Polio is associated with a pure motor neuropathy. There is no sensory involvement in polio and hence trophic ulcers are not seen in polio.', 'role': 'assistant'}]