This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Meningococcal vaccines should be stored at - \nSelect and explain. \nA. -4 oC, B. 0 oC, C. 2-8 oC, D. -20 oC', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Meningococcal vaccines should be stored at 2-8oC . Ref: PARK&;S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 23rd edition , Page :167', 'role': 'assistant'}]