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': 'True statements about Y. Pestis is/are -a) Gram positiveb) Non-motilec) Benzyl penicillin is given in prophylaxisd) Patients are kept isolated till 48 hours of treatmente) Repeated blood culture is diagnostic \nSelect and explain. \nA. abc, B. ade, C. ace, D. bde', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]