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': 'Which of troponin binds to tropomyosin to form troponin-tropomyosin complex? \nSelect and explain. \nA. I, B. c, C. t, D. m', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]