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: Radiology
Bird of Prey" sign is seen in the radiographic barium examination of: 
Select and explain. 
A. Gastric volvulus, B. Intussusception, C. Sigmoid volvulus, D. Caeca! volvulus
C: Sigmoid volvulus
Answer: C: Sigmoid volvulus 
Explanation: Sigmoid volvulus