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': 'A major source of collagen in cirrhosis - \nSelect and explain. \nA. Kupffer cells, B. Ito cell (Hepatic stellate cell), C. Hepatocyte, D. Canalicular cell', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Perisinusoidal stellate cells (Ito cells) play a role in the storage and metabolism of vitamin A and are transformed into collegen producing myofibroblasts when there is inflamation of the liver.\nThese cells are the major source of collagen in cirrhosis', 'role': 'assistant'}]