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: Physiology
[{'content': 'Thin filament consists of all except: \nSelect and explain. \nA. Actin, B. Troponin, C. Myosin, D. Tropomyosin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Myosin\xa0is\xa0thick\xa0filament. All\xa0others\xa0 in\xa0the options are thin filaments.', 'role': 'assistant'}]