This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'According to WHO ,the feature of class II lupus is \nSelect and explain. \nA. Transient proteinuria, B. Massive proteinuria, C. Hematuria, D. RBC casts', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ref Robbins 9/e p222 Mesangial proliferative lupus nephritis (class II) is seen in 10% to 25% of cases and is associated with mild clinical symptoms. Immune complexes deposit in the mesangium, with a mild to moderate increase in the mesangial matrix and cellularity', 'role': 'assistant'}]