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
[{'content': 'Henoch Schonlein Purpura presents with deposition of \nSelect and explain. \nA. IgG, B. IgM, C. IgA, D. IgE', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer is C (IgA) The most common class of antibodies deposited in immune complexes of Henoch Schonlein Purpura is IgA.', 'role': 'assistant'}]