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
[{'content': 'Inverse agonist of GABA receptor is \nSelect and explain. \nA. Benzodiazepines, B. Flumazenil, C. β- Carboline, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: β - Carboline is the inverse agonist.\nBenzodiazepines are full agonists that open chloride channels by acting on GABA receptors.\nFlumazenil is\xa0antagonist for Benzodiazepines given to treat toxicity.', 'role': 'assistant'}]