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
Which is not a characteristic of wegeners granulomatosis - 
Select and explain. 
A. Granuloma in vessel wall, B. Focal necrotising glomerulonephritis, C. Positive for c ANCA, D. Involves large vessels
D: Involves large vessels
Answer: D: Involves large vessels 
Explanation: Wegeners granulomatosis involves small vessels (arteriole, venule, capillary).