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': 'Pseudomonal infection, not cleaned by - \nSelect and explain. \nA. Dettol, B. Hypochlorite, C. Chlorine, D. Betadine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]