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: Surgery
[{'content': 'Clinical features of choledochal cyst in adult are - \nSelect and explain. \nA. Pain, lump and intermittent jaundice, B. Pain, fever and intermittent jaundice, C. Pain, lump and prgressive jaundice, D. Pain, fever and progressive jaundice', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e. Pain, lump and progressive jaundice", 'role': 'assistant'}]