This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: ENT
[{'content': "Most common malignancy seen in AIDS patients is: \nSelect and explain. \nA. Non-Hodgkin's lymphoma, B. Kaposi's sarcoma, C. Cancer nasopharynx, D. Hairy leukoplakia", 'role': 'user'}, {'content': "Answer: B \nExplanation: Kaposi's sarcoma is the most common malignancy seen in AIDS patients. It involves skin or the mucous membrane. Association with herpes virus 8 has been seen in the causation of Kaposi's sarcoma in AIDS patients.Non-Hodgkin's lymphoma is the second-most common malignancy seen in HIV patients.Hairy leukoplakia in AIDS patients is caused by Ebstein-Barr virus. It presents as white patches on the lateral border of tongue and may be an early manifestation of disease.", 'role': 'assistant'}]