This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parathyroid and adrenal glands, Subject name: Surgery
[{'content': 'Indication for surgery in a case of adrenal incidentaloma: \nSelect and explain. \nA. Size>5 cm, B. Bilateral adrenal metastasis, C. Functional tumor, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Indications of surgery in Incidentaloma: Suspicious imaging characterstics (irregular margins) Size>5 cm Bilateral adrenal metastasis Functional tumor Young age Few surgical risk factors Interval tumor growth Patient preference.', 'role': 'assistant'}]