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': 'Rosenthal fibres in astrocytoma are composed of - \nSelect and explain. \nA. Heat shock proteins, B. Fibrillar proteins, C. GFAP, D. Globulins', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., GFAP o Rosenthal fibers are found in astrocytic processes and are thought to be clumped intermediate filament proteins. Their components include glial fibrillary acidic protein (GFAP).", 'role': 'assistant'}]