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': 'Pulsus Bigeminus is seen in therapy with - \nSelect and explain. \nA. Beta blockers, B. ACE inhibitors, C. Digitalis, D. Calcium channel blockers', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Pulsus Bigeminus is recognized as a cause of digitalis toxicity.\nPulsus Bigeminus is a disorder of rhythm (irregular rhythm; arrhythmia) most commonly caused by Premature Ventricular Contracons that results in a pulse with irregular rhythm that alternates in amplitude (pressure) from beat to beat.\nThe most common cause of Pulsus Bigeminus is Digitalis and Pulsus Bigeminus is recognized as a cause of digitalis toxicity', 'role': 'assistant'}]