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