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
Mercedes Benz sign is seen in 
Select and explain. 
A. Pneumoperitoneum, B. Ileocecal TB, C. Gall stones, D. Acute pancreatitis
C: Gall stones
Answer: C: Gall stones 
Explanation: Seagull or mercedes Benz or crow feet sign - Gall stones.