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
TRUE about mycoplasma is - 
Select and explain. 
A. Causes lung infection, B. Penicillin is drug of choice, C. Thick cell wall, D. Thallium acetate inhibits the growth
A: Causes lung infection
Answer: A: Causes lung infection 
Explanation: None