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
[{'content': 'Not a Radiological feature of ileal atresia \nSelect and explain. \nA. Obstruction on Barium meal, B. Microcolon on Barium enema, C. Double bubble sign, D. Apple - Peel appearance', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Multiple bubble sign in seen in ileal atresia.', 'role': 'assistant'}]