This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
[{'content': 'Double Bubble sign is seen with \nSelect and explain. \nA. Pyloric stenosis, B. Duodenal atresia, C. Ileal atresia, D. Esophageal atesia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: It&;s a radiological sign described in cases of duodenal obstructive. A plain abdominal X-ray reveals 2 foci of gas, one in the stomach and other in the duodenum = a sign of duodenal atresia Reference bailey and love&;s edition 5 th page no.1195', 'role': 'assistant'}]