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
Clinical features of conus medullaris include all of the following except 
Select and explain. 
A. Extensor planter reflex, B. Saddle anesthesia, C. Late bladder involvement, D. Bilateral and usually symmetric sensory loss
C: Late bladder involvement
Answer: C: Late bladder involvement 
Explanation: Ans. is 'c' i.e., Late bladder involvement