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
[{'content': 'Diffuse proliferative glomerulonephritis, in lupus nephritis falls under- \nSelect and explain. \nA. Class II, B. Class III, C. Class IV, D. Class V', 'role': 'user'}, {'content': 'Answer: C \nExplanation: According to the WHO, six patterns of mutually-merging renal lesions are seen in lupus nephritis: Class I: Minimal lesions. Class II: Mesangial lupus nephritis. Class III: Focal segmental lupus nephritis. Class IV: Diffuse proliferative lupus nephritis Class V: Membranous lupus nephritis Class VI: Sclerosing lupus nephritis. Ref: HARSH MOHAN TEXTBOOK OF PATHOLOGY 6th ed. pg no: 676', 'role': 'assistant'}]