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': "In IgA nephropathy (Berger's disease), there are - \nSelect and explain. \nA. Subepithelial deposits, B. Subendothelial deposits, C. Mesangial deposits, D. Basement membrane deposits", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]