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': 'Which of the following is seen in Ulcerative colitis? \nSelect and explain. \nA. Cryptitis, B. Crypt loss, C. Crypt branching, D. Proliferating mucosa', 'role': 'user'}, {'content': 'Answer: A \nExplanation: . Cryptitis', 'role': 'assistant'}]