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': 'The earliest case of severe acute respiratory syndrome (SARS) was repoed in - \nSelect and explain. \nA. China, B. Singapore, C. Vietnam, D. Toronto', 'role': 'user'}, {'content': 'Answer: A \nExplanation: <p> The earliest case of SARS repoed in China,in late 2002. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:174. <\\p>', 'role': 'assistant'}]