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
Not a radialogical sign of pneumoperitoneum 
Select and explain. 
A. Visualization of falciform ligament, B. Football sign, C. Candy Cone appearance, D. Cupola sign
C: Candy Cone appearance
Answer: C: Candy Cone appearance 
Explanation: Candy Cone appearance - Single or multiple dilated loops of bowel with three air fluid levels seen in small intestine obstruction.