This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
Which of the following is NOT true about the use of Beta blocker in CHF 
Select and explain. 
A. These should be staed at very low dose and sowly titrated upwards, B. Carvedilol is most widely used beta blocker, C. These are drug of choice in acute decompensated hea failure., D. These can reduce moality in CHF patients
C: These are drug of choice in acute decompensated hea failure.
Answer: C: These are drug of choice in acute decompensated hea failure. 
Explanation: Ref KDT 6/e p544 Beta blockers are contra-indicated in acute decompensated hea failure.