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: Surgery
[{'content': 'Which one of the following blood fractions is stored at - 40degC?- \nSelect and explain. \nA. Cryprecipitate, B. Human albumin, C. Platelet concentrate, D. Packed red cells', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Cryprecipitate", 'role': 'assistant'}]