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': 'Walter Reed is associated with which disease? \nSelect and explain. \nA. Typhoid, B. Plague, C. Yellow Fever, D. Malaria', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Major Walter Reed was an U.S. Army physician led the team in 1900 that postulated and confirmed the theory that yellow fever is transmitted by Aedes mosquito species. Ref: Park, 21st Edition, Page 6.', 'role': 'assistant'}]