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
The most common genetic cause of liver disease in children is – 
Select and explain. 
A. Haemochromatosis, B. α1  antitrypsin deficiency, C. Cystic fibrosis, D. Glyocgen storage disease
B: α1  antitrypsin deficiency
Answer: B: α1  antitrypsin deficiency 
Explanation: Amongst the given options al antitrypsin deficiency is the best answer because neonatal hepatitis and extrahepatic biliary atresia are not there.