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
A child presented with non a Ranching purpura in the lower limb recurrent abdominal pain further in revealed deposition of IgA. What is the most probable diagnosis - 
Select and explain. 
A. Henoch schonlein purpura, B. Wegeners granulomatosis, C. Kawasaki disease, D. Takayasu disease
A: Henoch schonlein purpura
Answer: A: Henoch schonlein purpura 
Explanation: None