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': 'The pathological feature in Wegener&;s granulomatosis on renal biopsy \nSelect and explain. \nA. Nodular glomerulosclerosis, B. Focal necrotizing glomerulonephritis, C. Granulomas in the vascular wall, D. Granuloma of parenchyma of kidney', 'role': 'user'}, {'content': "Answer: B \nExplanation: Wegener's granulomatosis is a necro-inflammatory lesion having 4 components granulomas of the upper respiratory tract, granulomas of the lungs, systemic vasculitis (page 403) and focal necrotizing glomerulonephritis. Ref: Harsh Mohan textbook of pathology 6th edition page 495.", 'role': 'assistant'}]