This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Medicine
[{'content': 'IgA-nephropathy is seen in - \nSelect and explain. \nA. Membranous glomerulonephritis, B. Mesangioproliferative glomerulonephritis, C. Focal glomerulonephritis, D. Cresentic glomerulonephritis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: IgA nephropathy (IgAN) is a mesangial proliferative glomerulonephritis characterized by diffuse mesangial deposition of IgA. At one time, the term benign recurrent hematuria was also used for IgAN, but it is now known to be an impoant cause of end-stage renal disease (ESRD) . Ref Harrison20th edition pg 299', 'role': 'assistant'}]