question: Q:A 62-year-old man presents to his physician complaining of difficulty maintaining an erection over the past month. Otherwise he feels well. He has a history of hypertension and congestive heart failure. His current medications include metoprolol, amlodipine, furosemide, losartan, and aspirin. Three months ago, lisinopril was switched to losartan due to periodic cough. Two months ago, metoprolol and furosemide were added for better control of hypertension and edema, and the dose of amlodipine was reduced. He does not smoke. At the clinic, his blood pressure is 125/70 mm Hg, pulse is 58/min, and respirations are 14/min. Physical examination reveals clear lung sounds, a previously diagnosed systolic murmur, and mild pitting edema on the dorsum of both feet. Which of the following is the most appropriate modification in this patient’s medication?? 
  {'A': 'Adding indapamide', 'B': 'Discontinuing furosemide', 'C': 'Increasing the amlodipine dose', 'D': 'Reducing the metoprolol dose', 'E': 'Switching losartan to lisinopril'},