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': 'The following is true for Mycoplasmas except ? \nSelect and explain. \nA. Multiply by binary fission, B. Are sensitive to beta-lactam group of drugs, C. Can grow in cell free media, D. Require sterols for their growth', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b i.e., Are sensitive to beta lactam drugs", 'role': 'assistant'}]