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: Biochemistry
[{'content': 'Not a marker for muscle tumor \nSelect and explain. \nA. Desmin, B. Actin, C. Neurofilament, D. Intermediate filament', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Markers for smooth muscles tumor are : (t) Muscle specific actin, (ii) Intermediate filament, and (iii) Desmin. Neurofilament is a marker of neural tumors.', 'role': 'assistant'}]