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': 'The most common genetic cause of liver disease in children is – \nSelect and explain. \nA. Haemochromatosis, B. α1  antitrypsin deficiency, C. Cystic fibrosis, D. Glyocgen storage disease', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Amongst the given options al antitrypsin deficiency is the best answer because neonatal hepatitis and extrahepatic biliary atresia are not there.', 'role': 'assistant'}]