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': 'Which of the following is the most useful to differentiate micrococci from Staphylococci- \nSelect and explain. \nA. Catalase test, B. Hugh Leifson test, C. Oxidase test, D. All of the above', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Hugh Leifson test . The common laboratory test to differentiate between micrococci and Staphylococci is Hugh and Leifson's oxidation fermentation test in which micrococci show oxidative and Staphylococci show fermentative patterns.", 'role': 'assistant'}]