This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Gastrointestinal System Including Diarrhea, Subject name: Pediatrics
[{'content': 'Gasless abdomen on X-ray is seen in what type of trachea-esophageal fistula? \nSelect and explain. \nA. Isolated TEF, B. EA with proximal TEF, C. EA with distal TEF, D. EA with double TEF', 'role': 'user'}, {'content': 'Answer: B \nExplanation: * In EA with proximal TEF, as there is no connection of the distal esophagus with the trachea or proximal esophagus, gasless abdomen will be seen on X-ray. Classification of TEF: Type A: Atresia only (60%) Type B: Atresia with proximal TEF (2%) Type C: Atresia with distal TEF (85%): most common Type D: Atresia with both proximal and distal TEF (rare) Type E: Isolated TEF (H-type) (1%)', 'role': 'assistant'}]