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: Surgery
All are features of congenital megacolon except - 
Select and explain. 
A. Large bulky stools, B. Tight anal ring, C. Pseudodiarrhoea, D. Failure to thrive
A: Large bulky stools
Answer: A: Large bulky stools 
Explanation: None