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: Pathology
[{'content': 'Enzyme that protects the brain from free radical injury is ? \nSelect and explain. \nA. Myeloperoxidase, B. MAO, C. Superoxide dismutase, D. Hydroxylase', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Super oxide dismutase", 'role': 'assistant'}]