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': 'Oval cells are seen in the stem cells of \nSelect and explain. \nA. Skin, B. Cornea, C. Liver, D. Bone', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]