This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
[{'content': 'The most common site for intestinal TB is \nSelect and explain. \nA. Distal ileum, B. Jejunum, C. Sigmoid colon, D. Ascending colon', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Most common sites - Distal ileum and caecum Ref : Sabiston 20th edition Pgno : 1217', 'role': 'assistant'}]