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
Mint Common extranodal site of Lymphoma in HIV is? 
Select and explain. 
A. CNS, B. GIT, C. Retroperitoneum, D. Mediastinum
A: CNS
Answer: A: CNS 
Explanation: Answer is option 1, CNS Categories of HIV-associated lymphomas (1) Lymphoma also occurring in immunocompetent patients Burkitt and Burkitt-like lymphoma Diffuse large B-cell lymphoma - Centroblastic - Immunoblastic (including primary CNS lymphoma) Extranodal marginal zone lymphoma of MALT type