This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Pathology
[{'content': 'Burkitt&;s lymphoma is positive for? \nSelect and explain. \nA. CD 5, B. CD 15, C. CD 20, D. CD 25', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Burkitt lymphomas are tumours of mature B cells that express surface IgM, CD19, CD2O, CD10 and BCL6 , a phenotype consistent with a germinal centre B cell origin. Reference : Robbins and Cotran Pathologic basis of disease.South Asia Edition volume 1.page no. 597', 'role': 'assistant'}]