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: Medicine
Wire loop lesions are often characteristic for the following class of lupus nephritis - 
Select and explain. 
A. Mesangial proliferative glomerulonephritis( WHO class II), B. Focal proliferative glomerulonephritis (WHO class III), C. Diffuse proliferative glomerulonephritis (WHO class IV), D. Membranous glomerulonephritis (WHO class V)
C: Diffuse proliferative glomerulonephritis (WHO class IV)
Answer: C: Diffuse proliferative glomerulonephritis (WHO class IV) 
Explanation: None