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
Which of the following is a short acting benzodiazepine? 
Select and explain. 
A. Diazepam, B. Flurazepam, C. Lorazepam, D. Chlordiazepoxide
C: Lorazepam
Answer: C: Lorazepam 
Explanation: None