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
In dentistry which sedatives are generally used: 
Select and explain. 
A. Benzodiazepines, B. Morphine, C. NSAID, D. Pethidine
A: Benzodiazepines
Answer: A: Benzodiazepines 
Explanation: None