This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
Shoest acting benzodiazepine is: 
Select and explain. 
A. Midazolam, B. Alprazolam, C. Lorazepam, D. Diazepam
A: Midazolam
Answer: A: Midazolam 
Explanation: Alprazolam is sho acting hypnotic,lorazepam & diazepam are long acting ,while triazolam &midazolam are ultra sho acting benzodiazepines . Ref: KD Tripathi 8TH ed