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: Social & Preventive Medicine
[{'content': 'Storage temperature for vaccine is: A \nSelect and explain. \nA. --4degC to 0degC, B. 0degC to 4degC, C. +2degC to 8degC, D. +4degC to 12degC', 'role': 'user'}, {'content': 'Answer: C \nExplanation: +2degC to 8degC', 'role': 'assistant'}]