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': 'In necrotising enterocolitis earliest change seen in X–ray abdomen is – \nSelect and explain. \nA. Non specific bowel dilatation, B. Gas in the intestinal wall, C. Gas in splenic flexure, D. Ground glass appearance', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Earliest X-ray finding in neonatal necrotizing enterocolitis --> Nonspecific dilatation of intestine.\nCharacteristic X-ray finding of neonatal necrotizing enterocolitis --> Pneumatosis intestinalis (Gas in intestinal wall).', 'role': 'assistant'}]