This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
Better prognostic factor for operation of biliary duct obstruction in newborn are 
Select and explain. 
A. No passage of bile, B. Size of ductile >200 micron, C. Weight of baby >3 kg, D. Age of 8 weeks
D: Age of 8 weeks
Answer: D: Age of 8 weeks 
Explanation: Major factors in successful outcome after pooentreostomy Age in days at diagnosis and initial surgery (30-60 days) Length of time jaundice was present before surgery Successful and persistent bile flow postoperatively Size and nature of the microscopic ducts (>150um) Degree and extent of fibrotic changes in the liver Need for phototherapy as a neonate Technical aspects of the postenterostomy and anastomosis Presence of bile on hepatic lobular zone 1 Ref: Blumga 5th edition Pgno :600