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: Biochemistry
[{'content': 'After 50 gm of glucose is fed orally, there is \nSelect and explain. \nA. Decreased ketone body production, B. Increased lactate production upon exercise, C. Decreased gluconeogenesis, D. All of these', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The examiner is asking about the metabolic change in absorptive (fed) state.\nIn Absorptive (fed) state there is a decrease in gluconeogenesis.\nKetogenesis (ketone body production) is also reduced in the fed state.\nExercising muscles use glucose anaerobically and produce lactate.', 'role': 'assistant'}]