This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vasculitic Disorders in Children, Subject name: Pediatrics
[{'content': "13-year-old female child presented with recurrent sinusitis fever, ahralgia, respiratory distress, Hematuria and hypeension. Renal biopsy showed necrotizing granuloma. The anti proteinase-3 ANCA was positive. The most likely diagnosis is: \nSelect and explain. \nA. Polyaeritis Nodosa, B. Wegener's granulomatosis, C. Microscopic polyangiitis, D. Churg-Strauss syndrome", 'role': 'user'}, {'content': "Answer: B \nExplanation: Respiratory & Renal involvement along with positive c-ANCA (Anti Proteinase 3) indicates Wegener's Granulomatosis", 'role': 'assistant'}]