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': 'Colonic bacteria, on digestion of dietary fibres would give \nSelect and explain. \nA. Free radicals, B. Glycerol, C. Butyrate, D. Sucrose', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Colonic bacteria break down dietary fibers into short chain fatty acids - acetate, butyrate and propionate.', 'role': 'assistant'}]