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: Physiology
[{'content': 'If bile acid pool is small, recycling is: \nSelect and explain. \nA. Slow, B. Fast, C. Moderate, D. Any of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The total bile acid pool of approximately 3.5 g recycles repeatedly via the enterohepatic circulation; it has\xa0been calculated that the entire pool recycles twice per meal and 6–8 times per day.\nReference: Ganong’s Review of Medical Physiology T W E N T Y - F I F T H\xa0 \xa0E D I T I O N page no 464', 'role': 'assistant'}]