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: Pathology
[{'content': 'A patient with a bleeding disorder with increased bleeding time and normal clotting time is suffering from: \nSelect and explain. \nA. Classic hemophilia, B. Christmas disease, C. Vitamin K deficiency, D. Idiopathic thrombocytopenic purpura', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]