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 hypnotic drugs facilitates the inhibitory actions of GABA but lacks anticonvulsant or muscle relaxing properties and has minimal effect on sleep architecture 
Select and explain. 
A. Buspirone, B. Diazepam, C. Phenobarbital, D. Zaleplon
D: Zaleplon
Answer: D: Zaleplon 
Explanation: Zolpidem, zaleplon and zopiclone are agonists at BZD receptors.
These are hypnotic drugs that lack muscle relaxant and anticonvulsant actions.
These have negligible effect on REM sleep and do not affect sleep architecture.