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: Surgery
[{'content': 'Infra-abdominal calcificaition in a plane X-ray abdomen is most often seen in - \nSelect and explain. \nA. Meconium ileus, B. Meconium peritonitis, C. Meconium plug syndrome, D. Necrotising enterocolitis', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Meconium peritonitis", 'role': 'assistant'}]