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: Pharmacology
The following is NOT true about the use of beta–blockers in heart failure: 
Select and explain. 
A. It should be initiated at very low dose, B. It is most effective in new onset decompensated heart failure, C. Slow upward titration of dose is required, D. Carvedilol is most widely used in this condition
B: It is most effective in new onset decompensated heart failure
Answer: B: It is most effective in new onset decompensated heart failure 
Explanation: None