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': 'All are features of bile acid diarrhea, EXCEPT: \nSelect and explain. \nA. Extensive ileal involvement is seen, B. Hepatic synthesis compensates fecal loss, C. Reduced bile acid pool, D. Good response to cholestyramine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The difference between bile acid diarrhea and fatty acid diarrhea Bile Acid Diarrhea Fatty Acid Diarrhea The Extent of ileal disease Limited Extensive Biile acid absorption Reduced Reduced Bile acid excretion Increased Increased Hepatic compensation by excess production Yes No Bile acid pool Normal Reduced Steatorrhea Mild >20 g Response to cholestyramine Yes No Response to low-fat diet No Yes Ref: Harrison, E-18, P-2462.', 'role': 'assistant'}]