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': 'Which of the following flavi virus is closely related to Russian spring summer encephalitis causing virus \nSelect and explain. \nA. Dengue, B. Chikungunya, C. Yellow fever, D. KFD', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]