This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
A patient with CHF with LVEF <40% should be given? 
Select and explain. 
A. ACEI + beta blocker, B. ACEI + furisemide, C. ACEI + CCB, D. ACEI + ARB
A: ACEI + beta blocker
Answer: A: ACEI + beta blocker 
Explanation: Answer- A. ACEI + beta blockerPatient of hea failure with reduced resection fraction are treated by a combination of drugs.Drug combination- ACE inhibitors + beta blockers