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 bipotential progenitors of which of the following? \nSelect and explain. \nA. Lung, B. Liver, C. Brain, D. Hea', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The liver contains stem cells/progenitor cells in the canals of Hering, the junction between the biliary ductular system and parenchymal hepatocytes. Cells located in this niche can give rise to a population of precursor cells known as oval cells, which are bipotential progenitors, capable of differentiating into hepatocytes and biliary cells. Ref: Robbins 8th edition Chapter 3.', 'role': 'assistant'}]