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: Medicine
[{'content': "Which tumor is not seen in AIDS - \nSelect and explain. \nA. Kaposi sarcoma, B. GI adeno carcinoma, C. Non Hodgkin's lymphoma, D. Astrocytoma", 'role': 'user'}, {'content': "Answer: D \nExplanation: Brain tumours associated with AIDS is CNS lymphoma. Astrocytoma has no association with AIDS infection.\n\nCancers associated with HIV infection are:—\n\nKaposi's sarcoma (Most common)\nNon hodgkins lymphoma\nHodgkins lymphoma\nMultiple myeloma\nLeukemia\nMelanoma\nCervical cancer\nBrain cancer (CNS lymphoma)\nTesticular cancer\nAnal cancer\nOral cancer\nBurkitt's lymphoma", 'role': 'assistant'}]