question: Q:A 68-year-old male with a history of congestive heart failure presents to his cardiologist complaining of mild dyspnea on exertion and swollen ankles. His past medical history is also significant for hypertension and alcohol abuse. He has a 50 pack-year smoking history. He currently takes lisinopril, aspirin, and metoprolol. His temperature is 99°F (37.2°C), blood pressure is 135/85 mmHg, pulse is 85/min, and respirations are 18/min. An echocardiogram reveals an ejection fraction of 35%. His cardiologist adds an additional medication to the patient’s regimen. Two weeks later, the patient notices yellow halos in his vision. Which of the following medications did this patient most likely start taking?? 
  {'A': 'Hydralazine', 'B': 'Furosemide', 'C': 'Dobutamine', 'D': 'Digoxin', 'E': 'Nitroprusside'},