This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastro Intestinal System, Subject name: Pediatrics
Which of these is the most important cause of cholestatic jaundice in a newborn? 
Select and explain. 
A. Hypoplasia of the biliary tract, B. Choledochal cyst, C. Neonatal hepatitis, D. Physiological jaundice
C: Neonatal hepatitis
Answer: C: Neonatal hepatitis 
Explanation: Ans. C. Neonatal hepatitisCholestatic jaundice is characterized predominantly by rise in the levels of conjugated bilirubin. It is due to obstruction to the bile flow, either occurring inside the live (intrahepatic cholestasis) or outside the liver (extrahepatic cholestasis). Overall, the most common cause of cholestasis is neonatal hepatitis. The most common extrahepatic cause is biliary atresia.