This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Intestinal obstruction, Subject name: Surgery
Most common site of volvulus: 
Select and explain. 
A. Sigmoid colon, B. Caecum, C. Transverse colon, D. Stomach
A: Sigmoid colon
Answer: A: Sigmoid colon 
Explanation: Most common site of volvulus is Sigmoid colon.