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: Surgery
[{'content': 'Which subtype of Hodgkin lymphoma is negative for CD15 and CD30 markers : \nSelect and explain. \nA. Nodular sclerosis, B. Mixed cellularity, C. Lymphocyte depletion, D. Lymphocyte predominance', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Lymphocyte predominance Lymphocyte predominance subtype has tumor cells negative for CD15 and CD30; they are positive for CD20.', 'role': 'assistant'}]