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
Colonic bacteria, on digestion of dietary fibres would give 
Select and explain. 
A. Free radicals, B. Glycerol, C. Butyrate, D. Sucrose
C: Butyrate
Answer: C: Butyrate 
Explanation: Colonic bacteria break down dietary fibers into short chain fatty acids - acetate, butyrate and propionate.