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
Trophic ulcers are seen in a/e -a) Poliob) Syringomyeliac) Leprosyd) TB. Meningitis 
Select and explain. 
A. b, B. c, C. ad, D. ab
C: ad
Answer: C: ad 
Explanation: None