This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Anatomy
[{'content': 'Which drug resistance differentiates the non fermenters, Psedomonas and burkholderia? \nSelect and explain. \nA. Resistance to ampicillin, B. Resistance to ceftazidime, C. Resistance to ciprofloxacin, D. Resistance to polymyxin B', 'role': 'user'}, {'content': "Answer: D \nExplanation: Burkholderia can be differentiated from Pseudomonas by it's resistance to polymyxin, As polymyxin B is used for treating Psedomonas infection", 'role': 'assistant'}]