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': 'Transpo media for cholera - \nSelect and explain. \nA. VR medium, B. LZ medium, C. Bile salt agar, D. TCBS', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., VR medium", 'role': 'assistant'}]