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: Medicine
Which of the following is not associated with ANCA? 
Select and explain. 
A. Microscopic polyangitis, B. Churg strauss syndrome, C. Wegener's granulomatosis, D. Henoch shonlein purpura
D: Henoch shonlein purpura
Answer: D: Henoch shonlein purpura 
Explanation: None