This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immune system, Subject name: Medicine
Small vessel vasculitis are seen in 
Select and explain. 
A. Wegener vasculitis, B. Microscopic polyangitis, C. Churg strauss syndrome, D. All
D: All
Answer: D: All 
Explanation: <img src=" /> Ref - researhgate.net