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: Physiology
[{'content': 'Erythropoietin is secreted by A/E: \nSelect and explain. \nA. Hemangioblastoma, B. Hepatoma, C. Renal cell carcinoma, D. Adrenocoical tumours', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Di.e. Adrenocoical tumour', 'role': 'assistant'}]