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': 'All are true about hepatic cystadenoma except \nSelect and explain. \nA. Age >40 years and asymptomatic, B. Malignant predisposition, C. Surgical resection is required, D. Large projection with thickened wall is suggestive of malignancy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Majority of patients of biliary cystadenoma presents with a history of abdominal pain or mass Ref: Sabiston 20th edition Pgno : 1469', 'role': 'assistant'}]