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': "All are true of Henoch Scholein' s purpura, except \nSelect and explain. \nA. Thrombocytopenia, B. Abdominal pain, C. Ahritis, D. GI bleed", 'role': 'user'}, {'content': "Answer: A \nExplanation: Answer is A (Thrombocytopenia) : Purpura in 'Henoch Shonlein purpura' is due to vasculitis and not thrombocytopenia.", 'role': 'assistant'}]