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': 'TRUE about mycoplasma is - \nSelect and explain. \nA. Causes lung infection, B. Penicillin is drug of choice, C. Thick cell wall, D. Thallium acetate inhibits the growth', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]