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': 'Cetrimide culture media used in which infection? \nSelect and explain. \nA. E. coli, B. V. cholerae, C. Staph aureus, D. Pseudomonas', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Pseudomonas", 'role': 'assistant'}]