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': 'Torniquet test is a function of \nSelect and explain. \nA. Platelet function, B. Capillary fragility, C. Intrinsic pathway, D. Extrinsic pathway', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]