This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary tract, Subject name: Pathology
Most common nephropathy in the world is 
Select and explain. 
A. IgA nephropathy, B. Focal segmental glomerulosclerosis, C. Minimal change disease, D. Rapidly progressive glomerulonephritis
A: IgA nephropathy
Answer: A: IgA nephropathy 
Explanation: IgA nephropathy (nuh-FROP-uh-thee), also known as Berger's disease, is akidney disease that occurs when an antibody called immunoglobulin A(IgA) builds up in your kidneys. This results in local inflammation that, over time, can hamper your kidneys' ability to filter waste from your blood. Refer robbins 9/e