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
[{'content': 'Most common site for non-Hodgkins lymphoma outside the lymph nodes is - \nSelect and explain. \nA. Liver, B. Spleen, C. Stomach, D. Brain', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Although extra-nodal lymphomas can arise in virtually any tissue, they do so most commonly in the GI tract, particularly stomach.', 'role': 'assistant'}]