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
What is the characteristic feature in Wegner's glomerulonephritis? 
Select and explain. 
A. Granulomas in the vessel wall, B. Focal Necrotizing Glomerulonephritis, C. Nodular Glomerulo Sclerosis, D. Interstitial Granuloma
B: Focal Necrotizing Glomerulonephritis
Answer: B: Focal Necrotizing Glomerulonephritis 
Explanation: . Focal Necrotizing Glomerulonephritis