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': 'Saddleback fever is known as \nSelect and explain. \nA. Dengue fever, B. Brucellosis, C. Malaria fever, D. Typhoid fever', 'role': 'user'}, {'content': 'Answer: A \nExplanation: • Saddleback fever: Two peaks of fever separated by an afebrile period in-between\n• Seen in: Dengue, Trench fever, Bartonellosis, Chikungunya, Colaradotick fever\n• Saddleback fever: Two peaks of fever separated by an afebrile period in-between\n• Seen in: Dengue, Trench fever, Bartonellosis, Chikungunya, Colaradotick fever', 'role': 'assistant'}]