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': 'Biomarker not involved in acute kidney injury is \nSelect and explain. \nA. NGAL, B. KIM 1, C. Micro RNA 122, D. Cystatin C', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Micro RNA 122", 'role': 'assistant'}]