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': 'Tick borne Relapsing Fever is caused by: \nSelect and explain. \nA. Borrelia recurrentis, B. Borrelia burgdorferi, C. Rickettsia prowazeki, D. Borellia hermsii', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Borellia hermsii', 'role': 'assistant'}]