This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
[{'content': 'All the following causes QT prolongation except \nSelect and explain. \nA. Cisapride, B. Quinidine, C. Terfenadine, D. Cetrizine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Drugs producing QT prolongation- class 1a, class 3 antiarrhythmic agents terfinadine, tricyclic antidepressants, neuroleptics, prokinetics Ref: KD tripathi 8th ed', 'role': 'assistant'}]