This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pharmacology
All of the following are the actions of beta blockers in heart failure except: 
Select and explain. 
A. Decrease mortality, B. Antagonism of vasoconstriction, C. Prevent pathological remodeling, D. Prevent cardiac arrhythmias
B: Antagonism of vasoconstriction
Answer: B: Antagonism of vasoconstriction 
Explanation: Ans. B. Antagonism of vasoconstrictionBeta blockers actually cause vasoconstriction via antagonizing the vasodilation caused by beta 2 receptor. Rest all are the pharmacological actions of beta blockers.