【单选题】A 56-year-old white man with a history of a large anterior wall myocardial infarction and an EF of 20% presents to your clinic. He notes shortness of breath after climbing two flights of stairs and af...
A.
Begin hydralazine and isosorbide dinitrate
B.
Begin digoxin
C.
Begin spironolactone
D.
Hospitalization for intravenous dobutamine infusion