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
Most common type of lupus nephritis - 
Select and explain. 
A. Memberanous, B. Mesangial, C. Focal proliferative, D. Diffuse proliferatione
D: Diffuse proliferatione
Answer: D: Diffuse proliferatione 
Explanation: Ans. is 'd' i.e., Diffuse proliferatione o Diffuse proliferative glomerulonephritis (Class IV) is the most common form of lupus nephritis.