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': 'A newborn presenting with intestinal obstruction showed on abdominal X-ray, multiple air-fluid levels. The diagnosis is not likely to be – \nSelect and explain. \nA. Pyloric obstruction, B. Duodenal atresia, C. Illeal atresia, D. Ladd s bands', 'role': 'user'}, {'content': "Answer: A \nExplanation: You can solve this question in a very simple way :- This newborn is presenting with intestinal obstruction and pylorus is a part of stomach (not the intestine).\nPyloric obstruction shows a single bubble (single air fluid) appearance (not multiple air-fluid levels).\nDuodenal atresia and Ladd's band show double bubble. Heal atresia shows multiple bubbles (multiple air-fluid levels).", 'role': 'assistant'}]