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': 'The final sugars in intestinal chyme are \nSelect and explain. \nA. Glucose and fructose, B. Ribose and mannose, C. Ribose and xylulose, D. Xylulose and fructose', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]