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 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: Diffuse proliferative nephritis (DPN) or glomerulonephritis (DPGN) is a type of glomerulonephritis that is the most serious form of renal lesions in SLE and is also the most common, occurring in 35% to 60% of patients. Most of the glomeruli show endothelial and mesangial proliferation affecting the entire glomerulus, leading to diffuse hypercellularity of the glomeruli, producing in some cases epithelial crescents that fill Bowman's space. Here in this diffuse proliferation of lupus nephritis is most common. Ref: emedicine.medscape.com