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': "Multiple ileal strictures and internal fistulas are features of \nSelect and explain. \nA. Intestinal TB, B. Crohn's, disease, C. Ulcerative colitis, D. Diveiculosis", 'role': 'user'}, {'content': "Answer: B \nExplanation: Answer-B. Crohn's, diseaseCrohn's disease complicated by multiple strictures and internal fistulas.", 'role': 'assistant'}]