This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
The following drug has anxiolytic action with least sedation 
Select and explain. 
A. Buspirone, B. Triazolam, C. Alprazolam, D. Chlordiazepoxide
A: Buspirone
Answer: A: Buspirone 
Explanation: Features of Buspirone Non-benzodiazepine anxiolytic agentDoes not produce significant sedation or cognitive/functional impairmentDoes not interact with BZD receptor or modify GABAergic transmissionDoes not produce tolerance or physical dependence Does not suppress BZD or barbiturate withdrawal syndrome Has no muscle relaxant or anticonvulsant activity (Refer: KD Tripathi's Essentials of Medical Pharmacology, 7th edition, pg no: 466-467)