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': 'Detergents used to disinfect dental instruments in the office kill bacteria by interfering with functions of the cell \nSelect and explain. \nA. wall, B. nucleus, C. membrane, D. capsule', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]