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': 'A bacterial disease that has been associated with the 3 "Rs" i.e. rats, ricefields, and rainfall is- \nSelect and explain. \nA. Leptospirosis, B. Plague, C. Melioidosis, D. Rodent - bite fever', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]