This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
[{'content': "Cushing's syndrome is not a feature of - \nSelect and explain. \nA. Adrenal carcinoma, B. Oat cell carcinoma of lung, C. Medulloblastoma, D. Pituitary adenoma", 'role': 'user'}, {'content': 'Answer: C \nExplanation: medukloblastoma occur in the posterior fossa along with astrocytomas( Harrison 17 pg2605)', 'role': 'assistant'}]