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': 'Type I diabetes mellitus is associated with \nSelect and explain. \nA. insulin resistance, B. defect in mitochondrial DNA, C. islet cell autoantibodies, D. beta cell dysfunction', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]