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
Ureter is diagnosed during operation by - 
Select and explain. 
A. Venous plexus, B. High arterial supply, C. Peristaltic movements, D. Circumferance
C: Peristaltic movements
Answer: C: Peristaltic movements 
Explanation: None