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
RPGN occurs in all except 
Select and explain. 
A. SLE, B. Post streptococcal glomerulonephritis, C. Diabetic nephropathy, D. Good pasture's syndrome
C: Diabetic nephropathy
Answer: C: Diabetic nephropathy 
Explanation: None