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: Medicine
[{'content': 'All of the following may be seen in ventricular premature beats, Except: \nSelect and explain. \nA. Fusion beat, B. Narrow QRS complex, C. AV Dissociation, D. Wide QRS complex', 'role': 'user'}, {'content': "Answer: B \nExplanation: Answer is B (Narrow QRS complex) Premature Ventricular beats are characterized by a wide QRS Complex and not a narrow QRS complex. AV dissociation, Fusion beats and capture beats may be observed when three or more than three PVC's occur in succession.", 'role': 'assistant'}]