A 56-year-old man was brought to the emergency department with an acute myocardial infarction. The man was taking sildenafil before intercourse because of an erectile dysfunction. Recently he was diagnosed with exertional angina and an appropriate therapy was prescribed. Which of the following drugs most likely caused the disease of this patient?
A. Propanolol B. Diltiazem C. Nitroglycerin D. Nifedipine E. Verapamil