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
Rectal biopsy taken from Hirschsprung's disease from 
Select and explain. 
A. Dilated part, B. Transitional part, C. Constricted part, D. Any of the above
C: Constricted part
Answer: C: Constricted part 
Explanation: Affected part of Hirschsprung’s disease is cosntricted.