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: Pharmacology
A patient is undergoing abdominal surgery , which of the following drug can safely be stopped before surgery: 
Select and explain. 
A. Steroids, B. ACE inhibitors., C. Beta-blockers., D. None
B: ACE inhibitors.
Answer: B: ACE inhibitors. 
Explanation: All antihypertensives should be continued in the preoperative period except ACE inhibitors, Angiotensin receptor blocker, diuretics.