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
All are true regarding GB syndrome, Except - 
Select and explain. 
A. Predominant motor involvement, B. Absence of myelocytosis in CSF, C. Residual disability if treatment is delayed, D. Sparing of bladder function
C: Residual disability if treatment is delayed
Answer: C: Residual disability if treatment is delayed 
Explanation: None