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': 'Most common malignancy in AIDS is: March 2011 \nSelect and explain. \nA. Kaposi sarcoma, B. Hodgkins lymphoma, C. Leukemia, D. Multiple myeloma', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. A: Kaposi sarcoma The neoplastic diseases clearly seen with an increased frequency in patients with HIV infection are Kaposi sarcoma and non-Hodgkin's lymphoma", 'role': 'assistant'}]