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': "Which of the following is a Enrichment broth \nSelect and explain. \nA. Selenite F broth, B. Blood agar, C. Loeffler's serum slope, D. All the above", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Enrichment media is liquid media that allow certain organism to grow and inhibit others.\nExample:\n\nSelenite F broth and Tetrathionate broth for salmonella & Shigella.\nAlkaline peptone water for Vibro cholerae.', 'role': 'assistant'}]