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: Pathology
Most Common extranodal site of Lymphoma in 14W is? 
Select and explain. 
A. CNS, B. GIT, C. Retroperitoneum, D. Mediastinum
A: CNS
Answer: A: CNS 
Explanation: Ans. is 'a' i.e., CNS