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
Which is not related to immunity ? 
Select and explain. 
A. MPGN, B. PSGN, C. Diabetic nephropathy, D. IgA nephropathy
C: Diabetic nephropathy
Answer: C: Diabetic nephropathy 
Explanation: Ans. is 'c' i.e., Diabetic nephropathy The manifestation of chronic diabetes on kidneys is a result of the increased levels of blood glucose levels and are not immune mediated.