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
Preanesthetic medication is used for A/E : 
Select and explain. 
A. Decrease of anesthetic dose, B. Decrease BP, C. Prevent aspiration, D. Produce amnesia for peri-operative events
B: Decrease BP
Answer: B: Decrease BP 
Explanation: B i.e. Decrease BP