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': 'The growth factor required for the growth of vibrio parahemolyticus is ? \nSelect and explain. \nA. Saline, B. Tryptophan, C. Bile, D. Citrate', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Saline", 'role': 'assistant'}]