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
A 35 year old is given excessive intravenous Benzodiazepine.She suddenly becomes agitated, combative, and exhibits involuntary movements. The anesthesiologist determines that she is having a reaction to the drug which has been given in excess. Next step would be adminstration of: 
Select and explain. 
A. Protamine, B. Flumazenil, C. Buprenorphine, D. Morphine
B: Flumazenil
Answer: B: Flumazenil 
Explanation: Flumazenil