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
[{'content': 'What is the most common histological type of nephritis seen in systemic lupus erythematosus (SLE) - \nSelect and explain. \nA. Mesangial, B. Focal proliferative, C. Diffuse proliferative, D. Membranous', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Diffuse proliferative", 'role': 'assistant'}]