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': 'All are components of cryoprecipitate except: \nSelect and explain. \nA. Von willebrand factor, B. Factor V, C. Factor I, D. Factor VIII', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cryoprecipitate contains:\n\nFactor VIII (about 90 units)\nVon willebrand factor\nFibrinogen\nFactor XIII\nFibronectin', 'role': 'assistant'}]