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
Important metabolic effects of thyroxine is/are: 
Select and explain. 
A. 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.
D: All of the above.
Answer: D: All of the above. 
Explanation: None