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: Microbiology
[{'content': 'Hemorrhagic fttvr is caused by: \nSelect and explain. \nA. West-Mile fever, B. Sandfly fever, C. Ebola virus, D. All of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. c. Ebola virus', 'role': 'assistant'}]