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: Skin
[{'content': "A 5 year old child develops non blanching macules, papules and petecheal hemorrhage on lower extremities, mild abdominal pain, and skin biopsy showed IgA deposition along blood vessels and perivascular neutrophilic infiltrate. Most probably diagnosis is \nSelect and explain. \nA. Wegner's granulomatosis, B. Poly airitis nodosa, C. Henoch Schonlein purpura, D. Kawasaki disease", 'role': 'user'}, {'content': 'Answer: C \nExplanation: C.i.e. Henoch Schonlein purpura', 'role': 'assistant'}]