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: Surgery
[{'content': 'Important metabolic effects of thyroxine is/are: \nSelect and explain. \nA. Increases the basal metabolic rate., B. Reaction time of stretch reflexes is shortened by hyperthyroidism., C. Potentiates the effects of catecholamines., D. All of the above.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]