This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
[{'content': 'Cytomegalovirus causes what cancer in AIDS patients - \nSelect and explain. \nA. Lymphoma, B. Kaposi sarcoma, C. Leukemia, D. Glioma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In AIDS patients the already weakened immune response is fuher damaged by the nonspecific CMI inhibiting effect of CMV REF:ANANTHANARYANAN TEXTBOOK OF MICROBIOLOGY 9EDITION PGNO.474', 'role': 'assistant'}]