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': 'True about ulcerative colitis, all except - \nSelect and explain. \nA. Rectum involved, B. Pseudopolyps, C. Pancolitis, D. Noncaseating granuloma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Noncaseating granuloma is seen in Crohn disease.', 'role': 'assistant'}]