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
The following is true for Mycoplasmas except ? 
Select and explain. 
A. 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
B: Are sensitive to beta-lactam group of drugs
Answer: B: Are sensitive to beta-lactam group of drugs 
Explanation: Ans. is 'b i.e., Are sensitive to beta lactam drugs