This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bleeding Disorders, Subject name: Pathology
[{'content': 'Cause of ITP is- \nSelect and explain. \nA. Vasculitis, B. Antibody to vascular epithelium, C. Antibody to platelets, D. Antibody to clotting factors', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' antibody to platelets * There are 3 clinical subtypes of idiopathic thrombocytopenic purpura. In all of the three forms destruction of platelets is seen and the important point is that the destruction occurs by the same mechanism i.e. by formation of antibody against platelet", 'role': 'assistant'}]