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: Medicine
[{'content': 'Cardiac marker diagnostic on 10th day of MI- \nSelect and explain. \nA. CPKMB, B. LDH, C. Troponin, D. Myoglobin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]