This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pancreas, Subject name: Surgery
[{'content': "Idea of adrenal biopsy should be made after ruling out \nSelect and explain. \nA. Adrenocortical carcinoma, B. Metastases, C. Pheochromocytoma, D. Cushing's syndrome", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) PheochromocytomaRef: Bailey and love, 26th ed; pg. 779Adrenal gland biopsy* Never biopsy an adrenal mass until pheochromocytoma has been biochemically excluded* The indication for adrenal gland biopsy is to confirm adrenal gland metastasis', 'role': 'assistant'}]