This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
[{'content': 'Klebsiella oxytoca is: \nSelect and explain. \nA. Gram variable, B. Indole positive, C. Methyl red negative, D. No drug resistance reported', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Indole positiveIt is Indole positive whereas all other klebsiella are indole negative but methyl red and voges Proskauer positive.", 'role': 'assistant'}]