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: Surgery
[{'content': 'Commonest site for lymphoma in GIT is ? \nSelect and explain. \nA. Stomach, B. Duodenum, C. Ileum, D. Rectum', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans is \'a\' ie stomach "The stomach is the most frequent extranodal site for lymphomas. Microscopically, the vast majority of gastric lymphoid tumors are non-Hodgkins lymphomas of B cell origin, Hodgkins ds involving the stomach is extremely uncommon." - Harrison', 'role': 'assistant'}]