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': 'Gastric employing is rabid with \nSelect and explain. \nA. Carbohydrates, B. Fals, C. Proteins, D. Isotonic salime', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Isotonic raline causes most rapid gastric emptying among food substances > proteins > fats.', 'role': 'assistant'}]