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
All of the following are the actions of β–blockers in CHF except: 
Select and explain. 
A. Decrease in mortality associated with CHF, B. Antagonism of vasoconstriction due to sympathetic overactivity, C. Prevention of pathological remodelling of ventricular myocardium, D. Prevention of dangerous cardiac arrhythmias
B: Antagonism of vasoconstriction due to sympathetic overactivity
Answer: B: Antagonism of vasoconstriction due to sympathetic overactivity 
Explanation: Beta blockers may actually increase vasoconstriction by antagonizing the vasodilator action of β2 receptors.