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: Physiology
[{'content': 'Which of the following clotting factors are common in both extrinsic and intrinsic pathway: \nSelect and explain. \nA. Factor 5,9,10., B. Factor 5,10., C. Factor 5,9,10,11., D. None.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]