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: Pediatrics
[{'content': 'Which of the following is a charactersistic radiological finding in neonatal necrotizong enterocolitis ? \nSelect and explain. \nA. Gas in the poal system, B. Gas in the intestinal wall, C. Pneumoperitonium, D. Air fluid levels', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Gas in intestinal wall", 'role': 'assistant'}]