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': 'Which of the following agents do not act via GABAA-cl – channel complex receptors \nSelect and explain. \nA. Zopiclone., B. Benzodiazepines., C. Thiopentone., D. Promethazine.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]