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': 'Platelet function can be assessed by \nSelect and explain. \nA. Prothrombin time, B. Fibrinogen degradation products, C. Clotting time, D. Bleeding time', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Bleeding time is the time taken for bleeding to stop (time for platelet plug to form)\nBleeding time is a test of platelet function.', 'role': 'assistant'}]