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
Which of the following is positive in Follicular lymphoma 
Select and explain. 
A. Bcl 2, B. Bcl 6, C. Bcl 1, D. None of the above
A: Bcl 2
Answer: A: Bcl 2 
Explanation: * Burkitt lymphoma and Follicular lymphoma arises from Germinal center B cell * Mantle cell lymphoma arises from Naive B cell * Hairy cell leukemia and extranodal marginal zone lymphoma arises from Memory B cell Translocation In :- * Burkitt lymphoma t (8:14) * Follicular lymphoma t (14:18) * Mantle zone lymphoma t(11:14) * Marginal Zone lymphoma t(11:18) CD23 is negative in Mantle cell lymphoma Ref:- Robbins Basic Pathology 9th Edition; Pg num:- 468,469