This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Psychiatric Illness, Subject name: Pharmacology
A 43-year-old lady comes to emergency depament with acute attack of anxiety associated with physical symptoms like hyperventilation, increased HR, and sweating. She is diagnosed as a case of acute panic attack. Which of the following is the most suitable drug for this patient? 
Select and explain. 
A. Flumazenil, B. Alprazolam, C. Propranolol, D. Eszopiclone
B: Alprazolam
Answer: B: Alprazolam 
Explanation: Benzodiazepines like alprazolam and clonazepam are preferred for acute panic attack whereas SSRI like fluoxetine are drug of choice for long term management of panic disorder. Eszopiclone is a hypnotic. Propranolol is commonly used to treat performance anxiety (stage fright). Flumazenil is used in benzodiazepine poisoning.