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
Burkitt&;s lymphoma is positive for? 
Select and explain. 
A. CD 5, B. CD 15, C. CD 20, D. CD 25
C: CD 20
Answer: C: CD 20 
Explanation: 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