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': 'Short chain fatty acid produced by bacteria are maximally absorbed in \nSelect and explain. \nA. Duodenum, B. Colon, C. ileum, D. Jejunum', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Acetate, propionate and butyrate are short chain fatty acids formed in the colon by action of bacteria. They are reabsorbed in the colon itself.', 'role': 'assistant'}]