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
[{'content': 'True about Choledochal cyst is \nSelect and explain. \nA. Always extrahepatic, B. Treatment is cystojejunostomy, C. Excision is ideal treatment, D. Drainage is treatment of choice', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Option A: it can be both intrahepatic and extrahepatic Option B: Treatment of choice is Roux-en-Y hepaticojejunostomy Option D: Drainage is not done Option C: Roux-en-Y hepaticojejunostomy Is the treatment of choice. So Excision of Choledochal cyst is the right answer Ref: Sabiston 20th edition Pgno :1512-1514', 'role': 'assistant'}]