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': 'Listeria culture media: \nSelect and explain. \nA. Baker, B. Kohoff, C. Tinsdale, D. Blood agar', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. (d) Blood agar', 'role': 'assistant'}]