This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pathology
[{'content': 'Troponin T is marker of \nSelect and explain. \nA. Renal disease, B. Muscular dystrophy, C. Cirrhosis of liver, D. Myocardial infarction', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A troponin test measures the levels of troponin T or troponin I proteins in the blood. These proteins are released when the hea muscle has been damaged, such as occurs with a hea attack. The more damage there is to the hea, the greater the amount of troponin T and I there will be in the blood', 'role': 'assistant'}]