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': 'All are seen in Ulcerative colitis except- \nSelect and explain. \nA. Pseudopolyps, B. Skip lesions, C. Rectum involvement, D. Malabsorption', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]