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: Anaesthesia
Which of the following anaesthetic agent causes adrenal suppression – 
Select and explain. 
A. Etomidate, B. Thiopentone, C. Ketamine, D. Propofol
A: Etomidate
Answer: A: Etomidate 
Explanation: None