This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hea failure, Subject name: Medicine
Which of the following is not moality reducing drug in Hea failure with reduced ejection fraction(HFrEF)? 
Select and explain. 
A. Metoprolol, B. Digoxin, C. Captopril, D. K+sparing diuretics
B: Digoxin
Answer: B: Digoxin 
Explanation: Digoxin is not moality reducing drug in HFrEF. Moality reducing drug in patients with HFrEF: ACE inhibitors Angiotensin receptor blockers (ARBs) Angiotensin receptor blocker with Neprilysin Inhibitor (ARNI) Beta blockers Mineralocoicoid receptor antagonists Spironolactone Eplerenone Isosorbide dinitrate + Hydralazine